Home / 449,279,834.86-673,992,169.53-138,387,306.70

Finding the Fourth Proportional to 449,279,834.86, 673,992,169.53 and 138,387,306.70

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Solution

The fourth proportional to 449,279,834.86, 673,992,169.53 and 138,387,306.70 is: 207,603,266.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,279,834.86 : 673,992,169.53 = 138,387,306.70 : x
  2. Step 2: Convert to fraction form
    449,279,834.86/673,992,169.53 = 138,387,306.70/x
  3. Step 3: Cross multiply
    449,279,834.86x = 673,992,169.53 × 138,387,306.70
  4. Step 4: Simplify right side
    449,279,834.86x = 93,271,961,078,146,496
  5. Step 5: Solve for x
    x = 93,271,961,078,146,496/449,279,834.86
  6. Step 6: Final answer
    x = 207,603,266.03

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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.