Home / 13,812,493.52-20,720,631.13-4,712,147.78

Finding the Fourth Proportional to 13,812,493.52, 20,720,631.13 and 4,712,147.78

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Solution

The fourth proportional to 13,812,493.52, 20,720,631.13 and 4,712,147.78 is: 7,068,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812,493.52 : 20,720,631.13 = 4,712,147.78 : x
  2. Step 2: Convert to fraction form
    13,812,493.52/20,720,631.13 = 4,712,147.78/x
  3. Step 3: Cross multiply
    13,812,493.52x = 20,720,631.13 × 4,712,147.78
  4. Step 4: Simplify right side
    13,812,493.52x = 97,638,675,864,044.88
  5. Step 5: Solve for x
    x = 97,638,675,864,044.88/13,812,493.52
  6. Step 6: Final answer
    x = 7,068,866.73

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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.