Home / 99,815,587.20-149,723,380.80-28,012,003.20

Finding the Fourth Proportional to 99,815,587.20, 149,723,380.80 and 28,012,003.20

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Solution

The fourth proportional to 99,815,587.20, 149,723,380.80 and 28,012,003.20 is: 42,018,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815,587.20 : 149,723,380.80 = 28,012,003.20 : x
  2. Step 2: Convert to fraction form
    99,815,587.20/149,723,380.80 = 28,012,003.20/x
  3. Step 3: Cross multiply
    99,815,587.20x = 149,723,380.80 × 28,012,003.20
  4. Step 4: Simplify right side
    99,815,587.20x = 4,194,051,822,084,419
  5. Step 5: Solve for x
    x = 4,194,051,822,084,419/99,815,587.20
  6. Step 6: Final answer
    x = 42,018,004.80

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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.