Home / 278,746,013.48-418,029,506.30-91,957,968.43

Finding the Fourth Proportional to 278,746,013.48, 418,029,506.30 and 91,957,968.43

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Solution

The fourth proportional to 278,746,013.48, 418,029,506.30 and 91,957,968.43 is: 137,907,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746,013.48 : 418,029,506.30 = 91,957,968.43 : x
  2. Step 2: Convert to fraction form
    278,746,013.48/418,029,506.30 = 91,957,968.43/x
  3. Step 3: Cross multiply
    278,746,013.48x = 418,029,506.30 × 91,957,968.43
  4. Step 4: Simplify right side
    278,746,013.48x = 38,441,144,142,328,704
  5. Step 5: Solve for x
    x = 38,441,144,142,328,704/278,746,013.48
  6. Step 6: Final answer
    x = 137,907,422.11

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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.