Home / 8,018,723.70-12,028,085.55-6,129,155.70

Finding the Fourth Proportional to 8,018,723.70, 12,028,085.55 and 6,129,155.70

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Solution

The fourth proportional to 8,018,723.70, 12,028,085.55 and 6,129,155.70 is: 9,193,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018,723.70 : 12,028,085.55 = 6,129,155.70 : x
  2. Step 2: Convert to fraction form
    8,018,723.70/12,028,085.55 = 6,129,155.70/x
  3. Step 3: Cross multiply
    8,018,723.70x = 12,028,085.55 × 6,129,155.70
  4. Step 4: Simplify right side
    8,018,723.70x = 73,722,009,108,870.14
  5. Step 5: Solve for x
    x = 73,722,009,108,870.14/8,018,723.70
  6. Step 6: Final answer
    x = 9,193,733.55

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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.