Home / 154,092,943.86-231,218,882.89-72,220,139.86

Finding the Fourth Proportional to 154,092,943.86, 231,218,882.89 and 72,220,139.86

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Solution

The fourth proportional to 154,092,943.86, 231,218,882.89 and 72,220,139.86 is: 108,367,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,092,943.86 : 231,218,882.89 = 72,220,139.86 : x
  2. Step 2: Convert to fraction form
    154,092,943.86/231,218,882.89 = 72,220,139.86/x
  3. Step 3: Cross multiply
    154,092,943.86x = 231,218,882.89 × 72,220,139.86
  4. Step 4: Simplify right side
    154,092,943.86x = 16,698,660,059,071,566
  5. Step 5: Solve for x
    x = 16,698,660,059,071,566/154,092,943.86
  6. Step 6: Final answer
    x = 108,367,454.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.