Home / 664,302,821.40-996,454,232.10-660,476,446.20

Finding the Fourth Proportional to 664,302,821.40, 996,454,232.10 and 660,476,446.20

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Solution

The fourth proportional to 664,302,821.40, 996,454,232.10 and 660,476,446.20 is: 990,714,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,821.40 : 996,454,232.10 = 660,476,446.20 : x
  2. Step 2: Convert to fraction form
    664,302,821.40/996,454,232.10 = 660,476,446.20/x
  3. Step 3: Cross multiply
    664,302,821.40x = 996,454,232.10 × 660,476,446.20
  4. Step 4: Simplify right side
    664,302,821.40x = 658,134,550,018,358,016
  5. Step 5: Solve for x
    x = 658,134,550,018,358,016/664,302,821.40
  6. Step 6: Final answer
    x = 990,714,669.30

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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.