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Finding the Fourth Proportional to 64,442,589.44, 96,672,944.80 and 20,708,685.84

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Solution

The fourth proportional to 64,442,589.44, 96,672,944.80 and 20,708,685.84 is: 31,065,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442,589.44 : 96,672,944.80 = 20,708,685.84 : x
  2. Step 2: Convert to fraction form
    64,442,589.44/96,672,944.80 = 20,708,685.84/x
  3. Step 3: Cross multiply
    64,442,589.44x = 96,672,944.80 × 20,708,685.84
  4. Step 4: Simplify right side
    64,442,589.44x = 2,001,969,643,090,861.50
  5. Step 5: Solve for x
    x = 2,001,969,643,090,861.50/64,442,589.44
  6. Step 6: Final answer
    x = 31,065,940.41

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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.