Home / 12,491,355.70-18,744,031.95-5,301,666.10

Finding the Fourth Proportional to 12,491,355.70, 18,744,031.95 and 5,301,666.10

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Solution

The fourth proportional to 12,491,355.70, 18,744,031.95 and 5,301,666.10 is: 7,955,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,355.70 : 18,744,031.95 = 5,301,666.10 : x
  2. Step 2: Convert to fraction form
    12,491,355.70/18,744,031.95 = 5,301,666.10/x
  3. Step 3: Cross multiply
    12,491,355.70x = 18,744,031.95 × 5,301,666.10
  4. Step 4: Simplify right side
    12,491,355.70x = 99,374,598,766,631.89
  5. Step 5: Solve for x
    x = 99,374,598,766,631.89/12,491,355.70
  6. Step 6: Final answer
    x = 7,955,469.46

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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.