Home / 159,488,378.25-220,094,050.55-86,149,520.97

Finding the Fourth Proportional to 159,488,378.25, 220,094,050.55 and 86,149,520.97

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Solution

The fourth proportional to 159,488,378.25, 220,094,050.55 and 86,149,520.97 is: 118,886,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488,378.25 : 220,094,050.55 = 86,149,520.97 : x
  2. Step 2: Convert to fraction form
    159,488,378.25/220,094,050.55 = 86,149,520.97/x
  3. Step 3: Cross multiply
    159,488,378.25x = 220,094,050.55 × 86,149,520.97
  4. Step 4: Simplify right side
    159,488,378.25x = 18,960,997,022,798,716
  5. Step 5: Solve for x
    x = 18,960,997,022,798,716/159,488,378.25
  6. Step 6: Final answer
    x = 118,886,386.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.