Home / 13,431,332.40-20,146,998.60-12,634,170.90

Finding the Fourth Proportional to 13,431,332.40, 20,146,998.60 and 12,634,170.90

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Solution

The fourth proportional to 13,431,332.40, 20,146,998.60 and 12,634,170.90 is: 18,951,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,332.40 : 20,146,998.60 = 12,634,170.90 : x
  2. Step 2: Convert to fraction form
    13,431,332.40/20,146,998.60 = 12,634,170.90/x
  3. Step 3: Cross multiply
    13,431,332.40x = 20,146,998.60 × 12,634,170.90
  4. Step 4: Simplify right side
    13,431,332.40x = 254,540,623,434,460.78
  5. Step 5: Solve for x
    x = 254,540,623,434,460.78/13,431,332.40
  6. Step 6: Final answer
    x = 18,951,256.35

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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.