Home / 1,131,869,111.68-1,561,867,884.48-636,820,888.96

Finding the Fourth Proportional to 1,131,869,111.68, 1,561,867,884.48 and 636,820,888.96

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Solution

The fourth proportional to 1,131,869,111.68, 1,561,867,884.48 and 636,820,888.96 is: 878,750,099.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,869,111.68 : 1,561,867,884.48 = 636,820,888.96 : x
  2. Step 2: Convert to fraction form
    1,131,869,111.68/1,561,867,884.48 = 636,820,888.96/x
  3. Step 3: Cross multiply
    1,131,869,111.68x = 1,561,867,884.48 × 636,820,888.96
  4. Step 4: Simplify right side
    1,131,869,111.68x = 994,630,094,632,628,224
  5. Step 5: Solve for x
    x = 994,630,094,632,628,224/1,131,869,111.68
  6. Step 6: Final answer
    x = 878,750,099.61

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Double scale
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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.