Home / 12,253,312.10-18,379,968.15-7,718,348.90

Finding the Fourth Proportional to 12,253,312.10, 18,379,968.15 and 7,718,348.90

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Solution

The fourth proportional to 12,253,312.10, 18,379,968.15 and 7,718,348.90 is: 11,577,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,312.10 : 18,379,968.15 = 7,718,348.90 : x
  2. Step 2: Convert to fraction form
    12,253,312.10/18,379,968.15 = 7,718,348.90/x
  3. Step 3: Cross multiply
    12,253,312.10x = 18,379,968.15 × 7,718,348.90
  4. Step 4: Simplify right side
    12,253,312.10x = 141,863,006,952,587.53
  5. Step 5: Solve for x
    x = 141,863,006,952,587.53/12,253,312.10
  6. Step 6: Final answer
    x = 11,577,523.35

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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.