Home / 331,452,002.30-497,178,003.45-280,433,666.30

Finding the Fourth Proportional to 331,452,002.30, 497,178,003.45 and 280,433,666.30

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Solution

The fourth proportional to 331,452,002.30, 497,178,003.45 and 280,433,666.30 is: 420,650,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,452,002.30 : 497,178,003.45 = 280,433,666.30 : x
  2. Step 2: Convert to fraction form
    331,452,002.30/497,178,003.45 = 280,433,666.30/x
  3. Step 3: Cross multiply
    331,452,002.30x = 497,178,003.45 × 280,433,666.30
  4. Step 4: Simplify right side
    331,452,002.30x = 139,425,450,311,197,552
  5. Step 5: Solve for x
    x = 139,425,450,311,197,552/331,452,002.30
  6. Step 6: Final answer
    x = 420,650,499.45

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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.