Home / 627,061,205.97-940,228,658.01-212,399,051.31

Finding the Fourth Proportional to 627,061,205.97, 940,228,658.01 and 212,399,051.31

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Solution

The fourth proportional to 627,061,205.97, 940,228,658.01 and 212,399,051.31 is: 318,475,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,061,205.97 : 940,228,658.01 = 212,399,051.31 : x
  2. Step 2: Convert to fraction form
    627,061,205.97/940,228,658.01 = 212,399,051.31/x
  3. Step 3: Cross multiply
    627,061,205.97x = 940,228,658.01 × 212,399,051.31
  4. Step 4: Simplify right side
    627,061,205.97x = 199,703,674,975,798,432
  5. Step 5: Solve for x
    x = 199,703,674,975,798,432/627,061,205.97
  6. Step 6: Final answer
    x = 318,475,569.97

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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.