Home / 418,217,537.60-627,326,306.40-399,405,838.40

Finding the Fourth Proportional to 418,217,537.60, 627,326,306.40 and 399,405,838.40

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Solution

The fourth proportional to 418,217,537.60, 627,326,306.40 and 399,405,838.40 is: 599,108,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,217,537.60 : 627,326,306.40 = 399,405,838.40 : x
  2. Step 2: Convert to fraction form
    418,217,537.60/627,326,306.40 = 399,405,838.40/x
  3. Step 3: Cross multiply
    418,217,537.60x = 627,326,306.40 × 399,405,838.40
  4. Step 4: Simplify right side
    418,217,537.60x = 250,557,789,358,067,264
  5. Step 5: Solve for x
    x = 250,557,789,358,067,264/418,217,537.60
  6. Step 6: Final answer
    x = 599,108,757.60

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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.