Home / 83,015,695.70-124,187,620.35-72,937,999.70

Finding the Fourth Proportional to 83,015,695.70, 124,187,620.35 and 72,937,999.70

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Solution

The fourth proportional to 83,015,695.70, 124,187,620.35 and 72,937,999.70 is: 109,111,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,015,695.70 : 124,187,620.35 = 72,937,999.70 : x
  2. Step 2: Convert to fraction form
    83,015,695.70/124,187,620.35 = 72,937,999.70/x
  3. Step 3: Cross multiply
    83,015,695.70x = 124,187,620.35 × 72,937,999.70
  4. Step 4: Simplify right side
    83,015,695.70x = 9,057,996,615,832,014
  5. Step 5: Solve for x
    x = 9,057,996,615,832,014/83,015,695.70
  6. Step 6: Final answer
    x = 109,111,855.77

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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.