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Finding the Fourth Proportional to 13,724,505.60, 20,572,761.60 and 8,041,804.80

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Solution

The fourth proportional to 13,724,505.60, 20,572,761.60 and 8,041,804.80 is: 12,054,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724,505.60 : 20,572,761.60 = 8,041,804.80 : x
  2. Step 2: Convert to fraction form
    13,724,505.60/20,572,761.60 = 8,041,804.80/x
  3. Step 3: Cross multiply
    13,724,505.60x = 20,572,761.60 × 8,041,804.80
  4. Step 4: Simplify right side
    13,724,505.60x = 165,442,132,984,135.69
  5. Step 5: Solve for x
    x = 165,442,132,984,135.69/13,724,505.60
  6. Step 6: Final answer
    x = 12,054,505.85

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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.