Home / 72,776,731.20-109,165,096.80-61,817,236.80

Finding the Fourth Proportional to 72,776,731.20, 109,165,096.80 and 61,817,236.80

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Solution

The fourth proportional to 72,776,731.20, 109,165,096.80 and 61,817,236.80 is: 92,725,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,776,731.20 : 109,165,096.80 = 61,817,236.80 : x
  2. Step 2: Convert to fraction form
    72,776,731.20/109,165,096.80 = 61,817,236.80/x
  3. Step 3: Cross multiply
    72,776,731.20x = 109,165,096.80 × 61,817,236.80
  4. Step 4: Simplify right side
    72,776,731.20x = 6,748,284,639,180,522
  5. Step 5: Solve for x
    x = 6,748,284,639,180,522/72,776,731.20
  6. Step 6: Final answer
    x = 92,725,855.20

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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.