Home / 42,572,003.60-63,858,005.40-12,280,854.80

Finding the Fourth Proportional to 42,572,003.60, 63,858,005.40 and 12,280,854.80

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Solution

The fourth proportional to 42,572,003.60, 63,858,005.40 and 12,280,854.80 is: 18,421,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,572,003.60 : 63,858,005.40 = 12,280,854.80 : x
  2. Step 2: Convert to fraction form
    42,572,003.60/63,858,005.40 = 12,280,854.80/x
  3. Step 3: Cross multiply
    42,572,003.60x = 63,858,005.40 × 12,280,854.80
  4. Step 4: Simplify right side
    42,572,003.60x = 784,230,892,135,016
  5. Step 5: Solve for x
    x = 784,230,892,135,016/42,572,003.60
  6. Step 6: Final answer
    x = 18,421,282.20

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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.