Home / 280,496,204.64-420,744,310.61-76,024,279.89

Finding the Fourth Proportional to 280,496,204.64, 420,744,310.61 and 76,024,279.89

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Solution

The fourth proportional to 280,496,204.64, 420,744,310.61 and 76,024,279.89 is: 114,036,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,204.64 : 420,744,310.61 = 76,024,279.89 : x
  2. Step 2: Convert to fraction form
    280,496,204.64/420,744,310.61 = 76,024,279.89/x
  3. Step 3: Cross multiply
    280,496,204.64x = 420,744,310.61 × 76,024,279.89
  4. Step 4: Simplify right side
    280,496,204.64x = 31,986,783,231,559,616
  5. Step 5: Solve for x
    x = 31,986,783,231,559,616/280,496,204.64
  6. Step 6: Final answer
    x = 114,036,420.82

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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.