Home / 710,134,542.75-980,015,934.10-396,868,747.49

Finding the Fourth Proportional to 710,134,542.75, 980,015,934.10 and 396,868,747.49

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Solution

The fourth proportional to 710,134,542.75, 980,015,934.10 and 396,868,747.49 is: 547,695,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,542.75 : 980,015,934.10 = 396,868,747.49 : x
  2. Step 2: Convert to fraction form
    710,134,542.75/980,015,934.10 = 396,868,747.49/x
  3. Step 3: Cross multiply
    710,134,542.75x = 980,015,934.10 × 396,868,747.49
  4. Step 4: Simplify right side
    710,134,542.75x = 388,937,696,287,800,064
  5. Step 5: Solve for x
    x = 388,937,696,287,800,064/710,134,542.75
  6. Step 6: Final answer
    x = 547,695,785.62

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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.