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Finding the Fourth Proportional to 8,339,569.16, 12,510,286.86 and 2,658,475.40

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Solution

The fourth proportional to 8,339,569.16, 12,510,286.86 and 2,658,475.40 is: 3,988,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339,569.16 : 12,510,286.86 = 2,658,475.40 : x
  2. Step 2: Convert to fraction form
    8,339,569.16/12,510,286.86 = 2,658,475.40/x
  3. Step 3: Cross multiply
    8,339,569.16x = 12,510,286.86 × 2,658,475.40
  4. Step 4: Simplify right side
    8,339,569.16x = 33,258,289,864,253.24
  5. Step 5: Solve for x
    x = 33,258,289,864,253.24/8,339,569.16
  6. Step 6: Final answer
    x = 3,988,010.56

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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.