Home / 71,706,856.80-107,560,285.20-65,728,145.55

Finding the Fourth Proportional to 71,706,856.80, 107,560,285.20 and 65,728,145.55

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Solution

The fourth proportional to 71,706,856.80, 107,560,285.20 and 65,728,145.55 is: 98,592,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,706,856.80 : 107,560,285.20 = 65,728,145.55 : x
  2. Step 2: Convert to fraction form
    71,706,856.80/107,560,285.20 = 65,728,145.55/x
  3. Step 3: Cross multiply
    71,706,856.80x = 107,560,285.20 × 65,728,145.55
  4. Step 4: Simplify right side
    71,706,856.80x = 7,069,738,081,025,111
  5. Step 5: Solve for x
    x = 7,069,738,081,025,111/71,706,856.80
  6. Step 6: Final answer
    x = 98,592,218.33

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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.