Home / 627,488,193.72-940,141,507.58-440,345,231.38

Finding the Fourth Proportional to 627,488,193.72, 940,141,507.58 and 440,345,231.38

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Solution

The fourth proportional to 627,488,193.72, 940,141,507.58 and 440,345,231.38 is: 659,752,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,488,193.72 : 940,141,507.58 = 440,345,231.38 : x
  2. Step 2: Convert to fraction form
    627,488,193.72/940,141,507.58 = 440,345,231.38/x
  3. Step 3: Cross multiply
    627,488,193.72x = 940,141,507.58 × 440,345,231.38
  4. Step 4: Simplify right side
    627,488,193.72x = 413,986,829,685,881,920
  5. Step 5: Solve for x
    x = 413,986,829,685,881,920/627,488,193.72
  6. Step 6: Final answer
    x = 659,752,380.72

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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.