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Finding the Fourth Proportional to 8,694,401.80, 13,041,602.70 and 7,287,723.40

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Solution

The fourth proportional to 8,694,401.80, 13,041,602.70 and 7,287,723.40 is: 10,931,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694,401.80 : 13,041,602.70 = 7,287,723.40 : x
  2. Step 2: Convert to fraction form
    8,694,401.80/13,041,602.70 = 7,287,723.40/x
  3. Step 3: Cross multiply
    8,694,401.80x = 13,041,602.70 × 7,287,723.40
  4. Step 4: Simplify right side
    8,694,401.80x = 95,043,593,170,293.17
  5. Step 5: Solve for x
    x = 95,043,593,170,293.17/8,694,401.80
  6. Step 6: Final answer
    x = 10,931,585.10

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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.