Home / 15,001,709.56-20,702,458.56-8,126,191.56

Finding the Fourth Proportional to 15,001,709.56, 20,702,458.56 and 8,126,191.56

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Solution

The fourth proportional to 15,001,709.56, 20,702,458.56 and 8,126,191.56 is: 11,214,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,709.56 : 20,702,458.56 = 8,126,191.56 : x
  2. Step 2: Convert to fraction form
    15,001,709.56/20,702,458.56 = 8,126,191.56/x
  3. Step 3: Cross multiply
    15,001,709.56x = 20,702,458.56 × 8,126,191.56
  4. Step 4: Simplify right side
    15,001,709.56x = 168,232,144,021,521.72
  5. Step 5: Solve for x
    x = 168,232,144,021,521.72/15,001,709.56
  6. Step 6: Final answer
    x = 11,214,198.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.