Home / 42,487,904.20-63,731,856.30-13,754,660.80

Finding the Fourth Proportional to 42,487,904.20, 63,731,856.30 and 13,754,660.80

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Solution

The fourth proportional to 42,487,904.20, 63,731,856.30 and 13,754,660.80 is: 20,631,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487,904.20 : 63,731,856.30 = 13,754,660.80 : x
  2. Step 2: Convert to fraction form
    42,487,904.20/63,731,856.30 = 13,754,660.80/x
  3. Step 3: Cross multiply
    42,487,904.20x = 63,731,856.30 × 13,754,660.80
  4. Step 4: Simplify right side
    42,487,904.20x = 876,610,065,560,843
  5. Step 5: Solve for x
    x = 876,610,065,560,843/42,487,904.20
  6. Step 6: Final answer
    x = 20,631,991.20

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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.