Home / 8,138,103.03-12,255,870.73-7,411,689.61

Finding the Fourth Proportional to 8,138,103.03, 12,255,870.73 and 7,411,689.61

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Solution

The fourth proportional to 8,138,103.03, 12,255,870.73 and 7,411,689.61 is: 11,161,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,103.03 : 12,255,870.73 = 7,411,689.61 : x
  2. Step 2: Convert to fraction form
    8,138,103.03/12,255,870.73 = 7,411,689.61/x
  3. Step 3: Cross multiply
    8,138,103.03x = 12,255,870.73 × 7,411,689.61
  4. Step 4: Simplify right side
    8,138,103.03x = 90,836,709,751,044.12
  5. Step 5: Solve for x
    x = 90,836,709,751,044.12/8,138,103.03
  6. Step 6: Final answer
    x = 11,161,902.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.