Home / 8,221,407.40-12,332,111.10-3,962,006.20

Finding the Fourth Proportional to 8,221,407.40, 12,332,111.10 and 3,962,006.20

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Solution

The fourth proportional to 8,221,407.40, 12,332,111.10 and 3,962,006.20 is: 5,943,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221,407.40 : 12,332,111.10 = 3,962,006.20 : x
  2. Step 2: Convert to fraction form
    8,221,407.40/12,332,111.10 = 3,962,006.20/x
  3. Step 3: Cross multiply
    8,221,407.40x = 12,332,111.10 × 3,962,006.20
  4. Step 4: Simplify right side
    8,221,407.40x = 48,859,900,637,288.82
  5. Step 5: Solve for x
    x = 48,859,900,637,288.82/8,221,407.40
  6. Step 6: Final answer
    x = 5,943,009.30

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Double scale
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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.