Home / 19,920,415.20-29,857,003.20-17,889,129.60

Finding the Fourth Proportional to 19,920,415.20, 29,857,003.20 and 17,889,129.60

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Solution

The fourth proportional to 19,920,415.20, 29,857,003.20 and 17,889,129.60 is: 26,812,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,415.20 : 29,857,003.20 = 17,889,129.60 : x
  2. Step 2: Convert to fraction form
    19,920,415.20/29,857,003.20 = 17,889,129.60/x
  3. Step 3: Cross multiply
    19,920,415.20x = 29,857,003.20 × 17,889,129.60
  4. Step 4: Simplify right side
    19,920,415.20x = 534,115,799,712,414.75
  5. Step 5: Solve for x
    x = 534,115,799,712,414.75/19,920,415.20
  6. Step 6: Final answer
    x = 26,812,483.29

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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.