Home / 12,356,575.20-18,537,949.32-8,720,402.36

Finding the Fourth Proportional to 12,356,575.20, 18,537,949.32 and 8,720,402.36

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Solution

The fourth proportional to 12,356,575.20, 18,537,949.32 and 8,720,402.36 is: 13,082,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,575.20 : 18,537,949.32 = 8,720,402.36 : x
  2. Step 2: Convert to fraction form
    12,356,575.20/18,537,949.32 = 8,720,402.36/x
  3. Step 3: Cross multiply
    12,356,575.20x = 18,537,949.32 × 8,720,402.36
  4. Step 4: Simplify right side
    12,356,575.20x = 161,658,376,874,297.16
  5. Step 5: Solve for x
    x = 161,658,376,874,297.16/12,356,575.20
  6. Step 6: Final answer
    x = 13,082,781.78

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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.