Home / 664,006,987.20-996,010,480.80-654,937,060.80

Finding the Fourth Proportional to 664,006,987.20, 996,010,480.80 and 654,937,060.80

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Solution

The fourth proportional to 664,006,987.20, 996,010,480.80 and 654,937,060.80 is: 982,405,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,006,987.20 : 996,010,480.80 = 654,937,060.80 : x
  2. Step 2: Convert to fraction form
    664,006,987.20/996,010,480.80 = 654,937,060.80/x
  3. Step 3: Cross multiply
    664,006,987.20x = 996,010,480.80 × 654,937,060.80
  4. Step 4: Simplify right side
    664,006,987.20x = 652,324,176,821,146,752
  5. Step 5: Solve for x
    x = 652,324,176,821,146,752/664,006,987.20
  6. Step 6: Final answer
    x = 982,405,591.20

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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.