Home / 1,152,081,627.12-1,589,701,617.28-699,724,196.20

Finding the Fourth Proportional to 1,152,081,627.12, 1,589,701,617.28 and 699,724,196.20

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Solution

The fourth proportional to 1,152,081,627.12, 1,589,701,617.28 and 699,724,196.20 is: 965,515,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,081,627.12 : 1,589,701,617.28 = 699,724,196.20 : x
  2. Step 2: Convert to fraction form
    1,152,081,627.12/1,589,701,617.28 = 699,724,196.20/x
  3. Step 3: Cross multiply
    1,152,081,627.12x = 1,589,701,617.28 × 699,724,196.20
  4. Step 4: Simplify right side
    1,152,081,627.12x = 1,112,352,686,349,088,128
  5. Step 5: Solve for x
    x = 1,112,352,686,349,088,128/1,152,081,627.12
  6. Step 6: Final answer
    x = 965,515,515.71

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Half scale
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Double scale
Find fourth proportional to 1,152,081,628.12, 1,589,701,618.66 and 699,724,197.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.