Home / 13,459,507.60-20,189,261.40-12,556,057.90

Finding the Fourth Proportional to 13,459,507.60, 20,189,261.40 and 12,556,057.90

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Solution

The fourth proportional to 13,459,507.60, 20,189,261.40 and 12,556,057.90 is: 18,834,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459,507.60 : 20,189,261.40 = 12,556,057.90 : x
  2. Step 2: Convert to fraction form
    13,459,507.60/20,189,261.40 = 12,556,057.90/x
  3. Step 3: Cross multiply
    13,459,507.60x = 20,189,261.40 × 12,556,057.90
  4. Step 4: Simplify right side
    13,459,507.60x = 253,497,535,096,635.06
  5. Step 5: Solve for x
    x = 253,497,535,096,635.06/13,459,507.60
  6. Step 6: Final answer
    x = 18,834,086.85

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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.