Home / 8,640,208.80-12,960,313.20-8,271,626.40

Finding the Fourth Proportional to 8,640,208.80, 12,960,313.20 and 8,271,626.40

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Solution

The fourth proportional to 8,640,208.80, 12,960,313.20 and 8,271,626.40 is: 12,407,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,208.80 : 12,960,313.20 = 8,271,626.40 : x
  2. Step 2: Convert to fraction form
    8,640,208.80/12,960,313.20 = 8,271,626.40/x
  3. Step 3: Cross multiply
    8,640,208.80x = 12,960,313.20 × 8,271,626.40
  4. Step 4: Simplify right side
    8,640,208.80x = 107,202,868,817,388.48
  5. Step 5: Solve for x
    x = 107,202,868,817,388.48/8,640,208.80
  6. Step 6: Final answer
    x = 12,407,439.60

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Similar ratio
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1.5x scale

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.