Home / 99,291,909.70-148,937,864.55-68,680,908.10

Finding the Fourth Proportional to 99,291,909.70, 148,937,864.55 and 68,680,908.10

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Solution

The fourth proportional to 99,291,909.70, 148,937,864.55 and 68,680,908.10 is: 103,021,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291,909.70 : 148,937,864.55 = 68,680,908.10 : x
  2. Step 2: Convert to fraction form
    99,291,909.70/148,937,864.55 = 68,680,908.10/x
  3. Step 3: Cross multiply
    99,291,909.70x = 148,937,864.55 × 68,680,908.10
  4. Step 4: Simplify right side
    99,291,909.70x = 10,229,187,787,768,798
  5. Step 5: Solve for x
    x = 10,229,187,787,768,798/99,291,909.70
  6. Step 6: Final answer
    x = 103,021,362.15

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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.