Home / 8,085,808.20-12,128,712.30-7,501,223.10

Finding the Fourth Proportional to 8,085,808.20, 12,128,712.30 and 7,501,223.10

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Solution

The fourth proportional to 8,085,808.20, 12,128,712.30 and 7,501,223.10 is: 11,251,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,808.20 : 12,128,712.30 = 7,501,223.10 : x
  2. Step 2: Convert to fraction form
    8,085,808.20/12,128,712.30 = 7,501,223.10/x
  3. Step 3: Cross multiply
    8,085,808.20x = 12,128,712.30 × 7,501,223.10
  4. Step 4: Simplify right side
    8,085,808.20x = 90,980,176,878,014.12
  5. Step 5: Solve for x
    x = 90,980,176,878,014.12/8,085,808.20
  6. Step 6: Final answer
    x = 11,251,834.65

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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.