Home / 132,860,666.10-199,290,999.15-81,204,600.90

Finding the Fourth Proportional to 132,860,666.10, 199,290,999.15 and 81,204,600.90

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Solution

The fourth proportional to 132,860,666.10, 199,290,999.15 and 81,204,600.90 is: 121,806,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,860,666.10 : 199,290,999.15 = 81,204,600.90 : x
  2. Step 2: Convert to fraction form
    132,860,666.10/199,290,999.15 = 81,204,600.90/x
  3. Step 3: Cross multiply
    132,860,666.10x = 199,290,999.15 × 81,204,600.90
  4. Step 4: Simplify right side
    132,860,666.10x = 16,183,346,048,937,990
  5. Step 5: Solve for x
    x = 16,183,346,048,937,990/132,860,666.10
  6. Step 6: Final answer
    x = 121,806,901.35

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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.