Home / 266,112,347.20-399,168,520.80-84,359,233.60

Finding the Fourth Proportional to 266,112,347.20, 399,168,520.80 and 84,359,233.60

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Solution

The fourth proportional to 266,112,347.20, 399,168,520.80 and 84,359,233.60 is: 126,538,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,112,347.20 : 399,168,520.80 = 84,359,233.60 : x
  2. Step 2: Convert to fraction form
    266,112,347.20/399,168,520.80 = 84,359,233.60/x
  3. Step 3: Cross multiply
    266,112,347.20x = 399,168,520.80 × 84,359,233.60
  4. Step 4: Simplify right side
    266,112,347.20x = 33,673,550,491,933,656
  5. Step 5: Solve for x
    x = 33,673,550,491,933,656/266,112,347.20
  6. Step 6: Final answer
    x = 126,538,850.40

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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.