Home / 914,332,871.22-1,261,884,036.12-512,555,136.12

Finding the Fourth Proportional to 914,332,871.22, 1,261,884,036.12 and 512,555,136.12

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Solution

The fourth proportional to 914,332,871.22, 1,261,884,036.12 and 512,555,136.12 is: 707,384,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,332,871.22 : 1,261,884,036.12 = 512,555,136.12 : x
  2. Step 2: Convert to fraction form
    914,332,871.22/1,261,884,036.12 = 512,555,136.12/x
  3. Step 3: Cross multiply
    914,332,871.22x = 1,261,884,036.12 × 512,555,136.12
  4. Step 4: Simplify right side
    914,332,871.22x = 646,785,143,901,141,504
  5. Step 5: Solve for x
    x = 646,785,143,901,141,504/914,332,871.22
  6. Step 6: Final answer
    x = 707,384,765.72

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Double scale
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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.