Home / 77,129,543.50-115,633,441.38-38,241,182.40

Finding the Fourth Proportional to 77,129,543.50, 115,633,441.38 and 38,241,182.40

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Solution

The fourth proportional to 77,129,543.50, 115,633,441.38 and 38,241,182.40 is: 57,331,592.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,129,543.50 : 115,633,441.38 = 38,241,182.40 : x
  2. Step 2: Convert to fraction form
    77,129,543.50/115,633,441.38 = 38,241,182.40/x
  3. Step 3: Cross multiply
    77,129,543.50x = 115,633,441.38 × 38,241,182.40
  4. Step 4: Simplify right side
    77,129,543.50x = 4,421,959,523,352,287.50
  5. Step 5: Solve for x
    x = 4,421,959,523,352,287.50/77,129,543.50
  6. Step 6: Final answer
    x = 57,331,592.06

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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.