Home / 13,431,353.40-20,147,030.10-12,634,191.90

Finding the Fourth Proportional to 13,431,353.40, 20,147,030.10 and 12,634,191.90

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Solution

The fourth proportional to 13,431,353.40, 20,147,030.10 and 12,634,191.90 is: 18,951,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,353.40 : 20,147,030.10 = 12,634,191.90 : x
  2. Step 2: Convert to fraction form
    13,431,353.40/20,147,030.10 = 12,634,191.90/x
  3. Step 3: Cross multiply
    13,431,353.40x = 20,147,030.10 × 12,634,191.90
  4. Step 4: Simplify right side
    13,431,353.40x = 254,541,444,498,476.22
  5. Step 5: Solve for x
    x = 254,541,444,498,476.22/13,431,353.40
  6. Step 6: Final answer
    x = 18,951,287.85

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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.