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Finding the Fourth Proportional to 8,317,894.80, 12,475,920.60 and 6,819,373.20

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Solution

The fourth proportional to 8,317,894.80, 12,475,920.60 and 6,819,373.20 is: 10,228,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,894.80 : 12,475,920.60 = 6,819,373.20 : x
  2. Step 2: Convert to fraction form
    8,317,894.80/12,475,920.60 = 6,819,373.20/x
  3. Step 3: Cross multiply
    8,317,894.80x = 12,475,920.60 × 6,819,373.20
  4. Step 4: Simplify right side
    8,317,894.80x = 85,077,958,584,967.92
  5. Step 5: Solve for x
    x = 85,077,958,584,967.92/8,317,894.80
  6. Step 6: Final answer
    x = 10,228,304.23

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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.