Home / 710,134,545.04-980,015,937.20-396,868,749.78

Finding the Fourth Proportional to 710,134,545.04, 980,015,937.20 and 396,868,749.78

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Solution

The fourth proportional to 710,134,545.04, 980,015,937.20 and 396,868,749.78 is: 547,695,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,545.04 : 980,015,937.20 = 396,868,749.78 : x
  2. Step 2: Convert to fraction form
    710,134,545.04/980,015,937.20 = 396,868,749.78/x
  3. Step 3: Cross multiply
    710,134,545.04x = 980,015,937.20 × 396,868,749.78
  4. Step 4: Simplify right side
    710,134,545.04x = 388,937,699,761,038,976
  5. Step 5: Solve for x
    x = 388,937,699,761,038,976/710,134,545.04
  6. Step 6: Final answer
    x = 547,695,788.75

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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.