Home / 664,302,590.10-996,453,885.15-387,669,834.90

Finding the Fourth Proportional to 664,302,590.10, 996,453,885.15 and 387,669,834.90

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Solution

The fourth proportional to 664,302,590.10, 996,453,885.15 and 387,669,834.90 is: 581,504,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,590.10 : 996,453,885.15 = 387,669,834.90 : x
  2. Step 2: Convert to fraction form
    664,302,590.10/996,453,885.15 = 387,669,834.90/x
  3. Step 3: Cross multiply
    664,302,590.10x = 996,453,885.15 × 387,669,834.90
  4. Step 4: Simplify right side
    664,302,590.10x = 386,295,113,141,564,032
  5. Step 5: Solve for x
    x = 386,295,113,141,564,032/664,302,590.10
  6. Step 6: Final answer
    x = 581,504,752.35

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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.