Home / 971,072,139.05-1,340,202,286.91-636,825,865.04

Finding the Fourth Proportional to 971,072,139.05, 1,340,202,286.91 and 636,825,865.04

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Solution

The fourth proportional to 971,072,139.05, 1,340,202,286.91 and 636,825,865.04 is: 878,900,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,072,139.05 : 1,340,202,286.91 = 636,825,865.04 : x
  2. Step 2: Convert to fraction form
    971,072,139.05/1,340,202,286.91 = 636,825,865.04/x
  3. Step 3: Cross multiply
    971,072,139.05x = 1,340,202,286.91 × 636,825,865.04
  4. Step 4: Simplify right side
    971,072,139.05x = 853,475,480,690,046,976
  5. Step 5: Solve for x
    x = 853,475,480,690,046,976/971,072,139.05
  6. Step 6: Final answer
    x = 878,900,182.97

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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.