Home / 8,640,546.15-12,960,819.23-5,435,278.95

Finding the Fourth Proportional to 8,640,546.15, 12,960,819.23 and 5,435,278.95

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Solution

The fourth proportional to 8,640,546.15, 12,960,819.23 and 5,435,278.95 is: 8,152,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,546.15 : 12,960,819.23 = 5,435,278.95 : x
  2. Step 2: Convert to fraction form
    8,640,546.15/12,960,819.23 = 5,435,278.95/x
  3. Step 3: Cross multiply
    8,640,546.15x = 12,960,819.23 × 5,435,278.95
  4. Step 4: Simplify right side
    8,640,546.15x = 70,445,667,908,397.81
  5. Step 5: Solve for x
    x = 70,445,667,908,397.81/8,640,546.15
  6. Step 6: Final answer
    x = 8,152,918.43

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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.