Home / 1,314,843,112.69-1,814,540,532.47-728,132,248.69

Finding the Fourth Proportional to 1,314,843,112.69, 1,814,540,532.47 and 728,132,248.69

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Solution

The fourth proportional to 1,314,843,112.69, 1,814,540,532.47 and 728,132,248.69 is: 1,004,854,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,843,112.69 : 1,814,540,532.47 = 728,132,248.69 : x
  2. Step 2: Convert to fraction form
    1,314,843,112.69/1,814,540,532.47 = 728,132,248.69/x
  3. Step 3: Cross multiply
    1,314,843,112.69x = 1,814,540,532.47 × 728,132,248.69
  4. Step 4: Simplify right side
    1,314,843,112.69x = 1,321,225,478,241,121,024
  5. Step 5: Solve for x
    x = 1,321,225,478,241,121,024/1,314,843,112.69
  6. Step 6: Final answer
    x = 1,004,854,089.05

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Half scale
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Double scale
Find fourth proportional to 1,314,843,113.69, 1,814,540,533.85 and 728,132,249.69
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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.