Home / 21,135,225.60-31,681,843.20-9,755,827.20

Finding the Fourth Proportional to 21,135,225.60, 31,681,843.20 and 9,755,827.20

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Solution

The fourth proportional to 21,135,225.60, 31,681,843.20 and 9,755,827.20 is: 14,624,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,225.60 : 31,681,843.20 = 9,755,827.20 : x
  2. Step 2: Convert to fraction form
    21,135,225.60/31,681,843.20 = 9,755,827.20/x
  3. Step 3: Cross multiply
    21,135,225.60x = 31,681,843.20 × 9,755,827.20
  4. Step 4: Simplify right side
    21,135,225.60x = 309,082,587,636,695
  5. Step 5: Solve for x
    x = 309,082,587,636,695/21,135,225.60
  6. Step 6: Final answer
    x = 14,624,049.61

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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.