Home / 125,263,872,972.80-187,895,809,459.20-75,729,981,593.60

Finding the Fourth Proportional to 125,263,872,972.80, 187,895,809,459.20 and 75,729,981,593.60

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Solution

The fourth proportional to 125,263,872,972.80, 187,895,809,459.20 and 75,729,981,593.60 is: 113,594,972,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,263,872,972.80 : 187,895,809,459.20 = 75,729,981,593.60 : x
  2. Step 2: Convert to fraction form
    125,263,872,972.80/187,895,809,459.20 = 75,729,981,593.60/x
  3. Step 3: Cross multiply
    125,263,872,972.80x = 187,895,809,459.20 × 75,729,981,593.60
  4. Step 4: Simplify right side
    125,263,872,972.80x = 14,229,346,191,859,790,118,912
  5. Step 5: Solve for x
    x = 14,229,346,191,859,790,118,912/125,263,872,972.80
  6. Step 6: Final answer
    x = 113,594,972,390.40

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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.