Home / 280,496,218.46-420,744,331.32-76,024,293.70

Finding the Fourth Proportional to 280,496,218.46, 420,744,331.32 and 76,024,293.70

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Solution

The fourth proportional to 280,496,218.46, 420,744,331.32 and 76,024,293.70 is: 114,036,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,218.46 : 420,744,331.32 = 76,024,293.70 : x
  2. Step 2: Convert to fraction form
    280,496,218.46/420,744,331.32 = 76,024,293.70/x
  3. Step 3: Cross multiply
    280,496,218.46x = 420,744,331.32 × 76,024,293.70
  4. Step 4: Simplify right side
    280,496,218.46x = 31,986,790,616,881,788
  5. Step 5: Solve for x
    x = 31,986,790,616,881,788/280,496,218.46
  6. Step 6: Final answer
    x = 114,036,441.53

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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.