Home / 43,123,711.20-64,685,566.80-21,561,640.80

Finding the Fourth Proportional to 43,123,711.20, 64,685,566.80 and 21,561,640.80

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Solution

The fourth proportional to 43,123,711.20, 64,685,566.80 and 21,561,640.80 is: 32,342,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,123,711.20 : 64,685,566.80 = 21,561,640.80 : x
  2. Step 2: Convert to fraction form
    43,123,711.20/64,685,566.80 = 21,561,640.80/x
  3. Step 3: Cross multiply
    43,123,711.20x = 64,685,566.80 × 21,561,640.80
  4. Step 4: Simplify right side
    43,123,711.20x = 1,394,726,956,286,005.50
  5. Step 5: Solve for x
    x = 1,394,726,956,286,005.50/43,123,711.20
  6. Step 6: Final answer
    x = 32,342,461.20

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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.