Home / 918,221,479.20-1,377,332,218.80-504,972,957.60

Finding the Fourth Proportional to 918,221,479.20, 1,377,332,218.80 and 504,972,957.60

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Solution

The fourth proportional to 918,221,479.20, 1,377,332,218.80 and 504,972,957.60 is: 757,459,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,221,479.20 : 1,377,332,218.80 = 504,972,957.60 : x
  2. Step 2: Convert to fraction form
    918,221,479.20/1,377,332,218.80 = 504,972,957.60/x
  3. Step 3: Cross multiply
    918,221,479.20x = 1,377,332,218.80 × 504,972,957.60
  4. Step 4: Simplify right side
    918,221,479.20x = 695,515,524,125,206,272
  5. Step 5: Solve for x
    x = 695,515,524,125,206,272/918,221,479.20
  6. Step 6: Final answer
    x = 757,459,436.40

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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.