Home / 86,335,275.20-129,502,912.80-43,337,105.60

Finding the Fourth Proportional to 86,335,275.20, 129,502,912.80 and 43,337,105.60

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Solution

The fourth proportional to 86,335,275.20, 129,502,912.80 and 43,337,105.60 is: 65,005,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,335,275.20 : 129,502,912.80 = 43,337,105.60 : x
  2. Step 2: Convert to fraction form
    86,335,275.20/129,502,912.80 = 43,337,105.60/x
  3. Step 3: Cross multiply
    86,335,275.20x = 129,502,912.80 × 43,337,105.60
  4. Step 4: Simplify right side
    86,335,275.20x = 5,612,281,407,521,192
  5. Step 5: Solve for x
    x = 5,612,281,407,521,192/86,335,275.20
  6. Step 6: Final answer
    x = 65,005,658.40

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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.