Home / 67,154,424.10-100,731,636.15-21,720,811.30

Finding the Fourth Proportional to 67,154,424.10, 100,731,636.15 and 21,720,811.30

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Solution

The fourth proportional to 67,154,424.10, 100,731,636.15 and 21,720,811.30 is: 32,581,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154,424.10 : 100,731,636.15 = 21,720,811.30 : x
  2. Step 2: Convert to fraction form
    67,154,424.10/100,731,636.15 = 21,720,811.30/x
  3. Step 3: Cross multiply
    67,154,424.10x = 100,731,636.15 × 21,720,811.30
  4. Step 4: Simplify right side
    67,154,424.10x = 2,187,972,860,754,408.75
  5. Step 5: Solve for x
    x = 2,187,972,860,754,408.75/67,154,424.10
  6. Step 6: Final answer
    x = 32,581,216.95

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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.