Home / 664,302,991.40-996,454,487.10-660,476,616.20

Finding the Fourth Proportional to 664,302,991.40, 996,454,487.10 and 660,476,616.20

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Solution

The fourth proportional to 664,302,991.40, 996,454,487.10 and 660,476,616.20 is: 990,714,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,991.40 : 996,454,487.10 = 660,476,616.20 : x
  2. Step 2: Convert to fraction form
    664,302,991.40/996,454,487.10 = 660,476,616.20/x
  3. Step 3: Cross multiply
    664,302,991.40x = 996,454,487.10 × 660,476,616.20
  4. Step 4: Simplify right side
    664,302,991.40x = 658,134,887,837,114,624
  5. Step 5: Solve for x
    x = 658,134,887,837,114,624/664,302,991.40
  6. Step 6: Final answer
    x = 990,714,924.30

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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.