Home / 279,478,014.45-419,221,366.62-82,761,327.02

Finding the Fourth Proportional to 279,478,014.45, 419,221,366.62 and 82,761,327.02

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Solution

The fourth proportional to 279,478,014.45, 419,221,366.62 and 82,761,327.02 is: 124,143,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,478,014.45 : 419,221,366.62 = 82,761,327.02 : x
  2. Step 2: Convert to fraction form
    279,478,014.45/419,221,366.62 = 82,761,327.02/x
  3. Step 3: Cross multiply
    279,478,014.45x = 419,221,366.62 × 82,761,327.02
  4. Step 4: Simplify right side
    279,478,014.45x = 34,695,316,614,513,024
  5. Step 5: Solve for x
    x = 34,695,316,614,513,024/279,478,014.45
  6. Step 6: Final answer
    x = 124,143,277.18

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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.