Home / 8,085,476.70-12,128,215.05-5,215,695.30

Finding the Fourth Proportional to 8,085,476.70, 12,128,215.05 and 5,215,695.30

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Solution

The fourth proportional to 8,085,476.70, 12,128,215.05 and 5,215,695.30 is: 7,823,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,476.70 : 12,128,215.05 = 5,215,695.30 : x
  2. Step 2: Convert to fraction form
    8,085,476.70/12,128,215.05 = 5,215,695.30/x
  3. Step 3: Cross multiply
    8,085,476.70x = 12,128,215.05 × 5,215,695.30
  4. Step 4: Simplify right side
    8,085,476.70x = 63,257,074,233,674.27
  5. Step 5: Solve for x
    x = 63,257,074,233,674.27/8,085,476.70
  6. Step 6: Final answer
    x = 7,823,542.95

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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.