Home / 15,001,670.86-20,702,405.18-8,126,152.92

Finding the Fourth Proportional to 15,001,670.86, 20,702,405.18 and 8,126,152.92

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Solution

The fourth proportional to 15,001,670.86, 20,702,405.18 and 8,126,152.92 is: 11,214,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,670.86 : 20,702,405.18 = 8,126,152.92 : x
  2. Step 2: Convert to fraction form
    15,001,670.86/20,702,405.18 = 8,126,152.92/x
  3. Step 3: Cross multiply
    15,001,670.86x = 20,702,405.18 × 8,126,152.92
  4. Step 4: Simplify right side
    15,001,670.86x = 168,230,910,324,795.50
  5. Step 5: Solve for x
    x = 168,230,910,324,795.50/15,001,670.86
  6. Step 6: Final answer
    x = 11,214,144.87

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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.