Home / 72,687,618.20-109,031,427.30-59,773,601.90

Finding the Fourth Proportional to 72,687,618.20, 109,031,427.30 and 59,773,601.90

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Solution

The fourth proportional to 72,687,618.20, 109,031,427.30 and 59,773,601.90 is: 89,660,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,687,618.20 : 109,031,427.30 = 59,773,601.90 : x
  2. Step 2: Convert to fraction form
    72,687,618.20/109,031,427.30 = 59,773,601.90/x
  3. Step 3: Cross multiply
    72,687,618.20x = 109,031,427.30 × 59,773,601.90
  4. Step 4: Simplify right side
    72,687,618.20x = 6,517,201,130,018,992
  5. Step 5: Solve for x
    x = 6,517,201,130,018,992/72,687,618.20
  6. Step 6: Final answer
    x = 89,660,402.85

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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.