Home / 8,486,739.70-12,730,109.55-5,127,507.70

Finding the Fourth Proportional to 8,486,739.70, 12,730,109.55 and 5,127,507.70

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Solution

The fourth proportional to 8,486,739.70, 12,730,109.55 and 5,127,507.70 is: 7,691,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486,739.70 : 12,730,109.55 = 5,127,507.70 : x
  2. Step 2: Convert to fraction form
    8,486,739.70/12,730,109.55 = 5,127,507.70/x
  3. Step 3: Cross multiply
    8,486,739.70x = 12,730,109.55 × 5,127,507.70
  4. Step 4: Simplify right side
    8,486,739.70x = 65,273,734,739,468.54
  5. Step 5: Solve for x
    x = 65,273,734,739,468.54/8,486,739.70
  6. Step 6: Final answer
    x = 7,691,261.55

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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.