Home / 80,937,053.55-121,405,580.33-72,433,997.55

Finding the Fourth Proportional to 80,937,053.55, 121,405,580.33 and 72,433,997.55

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Solution

The fourth proportional to 80,937,053.55, 121,405,580.33 and 72,433,997.55 is: 108,650,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937,053.55 : 121,405,580.33 = 72,433,997.55 : x
  2. Step 2: Convert to fraction form
    80,937,053.55/121,405,580.33 = 72,433,997.55/x
  3. Step 3: Cross multiply
    80,937,053.55x = 121,405,580.33 × 72,433,997.55
  4. Step 4: Simplify right side
    80,937,053.55x = 8,793,891,507,817,378
  5. Step 5: Solve for x
    x = 8,793,891,507,817,378/80,937,053.55
  6. Step 6: Final answer
    x = 108,650,996.33

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Double scale
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Similar ratio
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1.5x scale

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.