Home / 279,937,397.20-419,906,095.80-157,493,390.80

Finding the Fourth Proportional to 279,937,397.20, 419,906,095.80 and 157,493,390.80

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Solution

The fourth proportional to 279,937,397.20, 419,906,095.80 and 157,493,390.80 is: 236,240,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,397.20 : 419,906,095.80 = 157,493,390.80 : x
  2. Step 2: Convert to fraction form
    279,937,397.20/419,906,095.80 = 157,493,390.80/x
  3. Step 3: Cross multiply
    279,937,397.20x = 419,906,095.80 × 157,493,390.80
  4. Step 4: Simplify right side
    279,937,397.20x = 66,132,434,845,131,648
  5. Step 5: Solve for x
    x = 66,132,434,845,131,648/279,937,397.20
  6. Step 6: Final answer
    x = 236,240,086.20

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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.