Home / 21,135,411.18-31,693,124.16-8,187,626.16

Finding the Fourth Proportional to 21,135,411.18, 31,693,124.16 and 8,187,626.16

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Solution

The fourth proportional to 21,135,411.18, 31,693,124.16 and 8,187,626.16 is: 12,277,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,411.18 : 31,693,124.16 = 8,187,626.16 : x
  2. Step 2: Convert to fraction form
    21,135,411.18/31,693,124.16 = 8,187,626.16/x
  3. Step 3: Cross multiply
    21,135,411.18x = 31,693,124.16 × 8,187,626.16
  4. Step 4: Simplify right side
    21,135,411.18x = 259,491,452,464,544.03
  5. Step 5: Solve for x
    x = 259,491,452,464,544.03/21,135,411.18
  6. Step 6: Final answer
    x = 12,277,568.21

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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.