Home / 13,438,657.08-20,126,595.06-12,353,520.78

Finding the Fourth Proportional to 13,438,657.08, 20,126,595.06 and 12,353,520.78

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Solution

The fourth proportional to 13,438,657.08, 20,126,595.06 and 12,353,520.78 is: 18,501,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,657.08 : 20,126,595.06 = 12,353,520.78 : x
  2. Step 2: Convert to fraction form
    13,438,657.08/20,126,595.06 = 12,353,520.78/x
  3. Step 3: Cross multiply
    13,438,657.08x = 20,126,595.06 × 12,353,520.78
  4. Step 4: Simplify right side
    13,438,657.08x = 248,634,310,304,355.31
  5. Step 5: Solve for x
    x = 248,634,310,304,355.31/13,438,657.08
  6. Step 6: Final answer
    x = 18,501,425.32

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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.