Home / 20,125,614.40-30,188,421.60-13,407,150.40

Finding the Fourth Proportional to 20,125,614.40, 30,188,421.60 and 13,407,150.40

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Solution

The fourth proportional to 20,125,614.40, 30,188,421.60 and 13,407,150.40 is: 20,110,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125,614.40 : 30,188,421.60 = 13,407,150.40 : x
  2. Step 2: Convert to fraction form
    20,125,614.40/30,188,421.60 = 13,407,150.40/x
  3. Step 3: Cross multiply
    20,125,614.40x = 30,188,421.60 × 13,407,150.40
  4. Step 4: Simplify right side
    20,125,614.40x = 404,740,708,729,808.69
  5. Step 5: Solve for x
    x = 404,740,708,729,808.69/20,125,614.40
  6. Step 6: Final answer
    x = 20,110,725.60

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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.