Home / 15,001,679.93-20,702,417.67-8,126,161.92

Finding the Fourth Proportional to 15,001,679.93, 20,702,417.67 and 8,126,161.92

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Solution

The fourth proportional to 15,001,679.93, 20,702,417.67 and 8,126,161.92 is: 11,214,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,679.93 : 20,702,417.67 = 8,126,161.92 : x
  2. Step 2: Convert to fraction form
    15,001,679.93/20,702,417.67 = 8,126,161.92/x
  3. Step 3: Cross multiply
    15,001,679.93x = 20,702,417.67 × 8,126,161.92
  4. Step 4: Simplify right side
    15,001,679.93x = 168,231,198,121,889.12
  5. Step 5: Solve for x
    x = 168,231,198,121,889.12/15,001,679.93
  6. Step 6: Final answer
    x = 11,214,157.28

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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.