Home / 279,598,363.65-419,397,323.94-75,126,438.90

Finding the Fourth Proportional to 279,598,363.65, 419,397,323.94 and 75,126,438.90

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Solution

The fourth proportional to 279,598,363.65, 419,397,323.94 and 75,126,438.90 is: 112,689,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,598,363.65 : 419,397,323.94 = 75,126,438.90 : x
  2. Step 2: Convert to fraction form
    279,598,363.65/419,397,323.94 = 75,126,438.90/x
  3. Step 3: Cross multiply
    279,598,363.65x = 419,397,323.94 × 75,126,438.90
  4. Step 4: Simplify right side
    279,598,363.65x = 31,507,827,431,801,920
  5. Step 5: Solve for x
    x = 31,507,827,431,801,920/279,598,363.65
  6. Step 6: Final answer
    x = 112,689,598.82

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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.