Home / 279,179,380.80-418,769,071.20-156,735,374.40

Finding the Fourth Proportional to 279,179,380.80, 418,769,071.20 and 156,735,374.40

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Solution

The fourth proportional to 279,179,380.80, 418,769,071.20 and 156,735,374.40 is: 235,103,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,179,380.80 : 418,769,071.20 = 156,735,374.40 : x
  2. Step 2: Convert to fraction form
    279,179,380.80/418,769,071.20 = 156,735,374.40/x
  3. Step 3: Cross multiply
    279,179,380.80x = 418,769,071.20 × 156,735,374.40
  4. Step 4: Simplify right side
    279,179,380.80x = 65,635,927,161,672,256
  5. Step 5: Solve for x
    x = 65,635,927,161,672,256/279,179,380.80
  6. Step 6: Final answer
    x = 235,103,061.60

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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.