Home / 99,702,396.40-149,441,620.20-42,184,879.60

Finding the Fourth Proportional to 99,702,396.40, 149,441,620.20 and 42,184,879.60

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Solution

The fourth proportional to 99,702,396.40, 149,441,620.20 and 42,184,879.60 is: 63,229,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,702,396.40 : 149,441,620.20 = 42,184,879.60 : x
  2. Step 2: Convert to fraction form
    99,702,396.40/149,441,620.20 = 42,184,879.60/x
  3. Step 3: Cross multiply
    99,702,396.40x = 149,441,620.20 × 42,184,879.60
  4. Step 4: Simplify right side
    99,702,396.40x = 6,304,176,755,365,928
  5. Step 5: Solve for x
    x = 6,304,176,755,365,928/99,702,396.40
  6. Step 6: Final answer
    x = 63,229,942.14

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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.