Home / 8,478,109.10-12,717,163.65-8,147,434.70

Finding the Fourth Proportional to 8,478,109.10, 12,717,163.65 and 8,147,434.70

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Solution

The fourth proportional to 8,478,109.10, 12,717,163.65 and 8,147,434.70 is: 12,221,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,109.10 : 12,717,163.65 = 8,147,434.70 : x
  2. Step 2: Convert to fraction form
    8,478,109.10/12,717,163.65 = 8,147,434.70/x
  3. Step 3: Cross multiply
    8,478,109.10x = 12,717,163.65 × 8,147,434.70
  4. Step 4: Simplify right side
    8,478,109.10x = 103,612,260,407,588.66
  5. Step 5: Solve for x
    x = 103,612,260,407,588.66/8,478,109.10
  6. Step 6: Final answer
    x = 12,221,152.05

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Similar ratio
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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.