Home / 72,776,724.20-109,165,086.30-61,817,229.80

Finding the Fourth Proportional to 72,776,724.20, 109,165,086.30 and 61,817,229.80

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Solution

The fourth proportional to 72,776,724.20, 109,165,086.30 and 61,817,229.80 is: 92,725,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,776,724.20 : 109,165,086.30 = 61,817,229.80 : x
  2. Step 2: Convert to fraction form
    72,776,724.20/109,165,086.30 = 61,817,229.80/x
  3. Step 3: Cross multiply
    72,776,724.20x = 109,165,086.30 × 61,817,229.80
  4. Step 4: Simplify right side
    72,776,724.20x = 6,748,283,225,943,931
  5. Step 5: Solve for x
    x = 6,748,283,225,943,931/72,776,724.20
  6. Step 6: Final answer
    x = 92,725,844.70

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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.