Home / 40,732,815.20-61,170,081.60-21,600,939.20

Finding the Fourth Proportional to 40,732,815.20, 61,170,081.60 and 21,600,939.20

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Solution

The fourth proportional to 40,732,815.20, 61,170,081.60 and 21,600,939.20 is: 32,438,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,732,815.20 : 61,170,081.60 = 21,600,939.20 : x
  2. Step 2: Convert to fraction form
    40,732,815.20/61,170,081.60 = 21,600,939.20/x
  3. Step 3: Cross multiply
    40,732,815.20x = 61,170,081.60 × 21,600,939.20
  4. Step 4: Simplify right side
    40,732,815.20x = 1,321,331,213,500,638.75
  5. Step 5: Solve for x
    x = 1,321,331,213,500,638.75/40,732,815.20
  6. Step 6: Final answer
    x = 32,438,985.79

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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.