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Finding the Fourth Proportional to 99,642,242.60, 149,463,363.90 and 45,894,530.60

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Solution

The fourth proportional to 99,642,242.60, 149,463,363.90 and 45,894,530.60 is: 68,841,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,242.60 : 149,463,363.90 = 45,894,530.60 : x
  2. Step 2: Convert to fraction form
    99,642,242.60/149,463,363.90 = 45,894,530.60/x
  3. Step 3: Cross multiply
    99,642,242.60x = 149,463,363.90 × 45,894,530.60
  4. Step 4: Simplify right side
    99,642,242.60x = 6,859,550,928,087,486
  5. Step 5: Solve for x
    x = 6,859,550,928,087,486/99,642,242.60
  6. Step 6: Final answer
    x = 68,841,795.90

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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.