Home / 664,302,207.40-996,453,311.10-660,475,832.20

Finding the Fourth Proportional to 664,302,207.40, 996,453,311.10 and 660,475,832.20

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Solution

The fourth proportional to 664,302,207.40, 996,453,311.10 and 660,475,832.20 is: 990,713,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,207.40 : 996,453,311.10 = 660,475,832.20 : x
  2. Step 2: Convert to fraction form
    664,302,207.40/996,453,311.10 = 660,475,832.20/x
  3. Step 3: Cross multiply
    664,302,207.40x = 996,453,311.10 × 660,475,832.20
  4. Step 4: Simplify right side
    664,302,207.40x = 658,133,329,897,218,048
  5. Step 5: Solve for x
    x = 658,133,329,897,218,048/664,302,207.40
  6. Step 6: Final answer
    x = 990,713,748.30

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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.