Home / 20,724,856.80-31,087,285.20-6,541,432.80

Finding the Fourth Proportional to 20,724,856.80, 31,087,285.20 and 6,541,432.80

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Solution

The fourth proportional to 20,724,856.80, 31,087,285.20 and 6,541,432.80 is: 9,812,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,856.80 : 31,087,285.20 = 6,541,432.80 : x
  2. Step 2: Convert to fraction form
    20,724,856.80/31,087,285.20 = 6,541,432.80/x
  3. Step 3: Cross multiply
    20,724,856.80x = 31,087,285.20 × 6,541,432.80
  4. Step 4: Simplify right side
    20,724,856.80x = 203,355,387,070,234.56
  5. Step 5: Solve for x
    x = 203,355,387,070,234.56/20,724,856.80
  6. Step 6: Final answer
    x = 9,812,149.20

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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.