Home / 15,001,671.86-20,702,406.56-8,126,153.92

Finding the Fourth Proportional to 15,001,671.86, 20,702,406.56 and 8,126,153.92

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Solution

The fourth proportional to 15,001,671.86, 20,702,406.56 and 8,126,153.92 is: 11,214,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,671.86 : 20,702,406.56 = 8,126,153.92 : x
  2. Step 2: Convert to fraction form
    15,001,671.86/20,702,406.56 = 8,126,153.92/x
  3. Step 3: Cross multiply
    15,001,671.86x = 20,702,406.56 × 8,126,153.92
  4. Step 4: Simplify right side
    15,001,671.86x = 168,230,942,220,977.69
  5. Step 5: Solve for x
    x = 168,230,942,220,977.69/15,001,671.86
  6. Step 6: Final answer
    x = 11,214,146.25

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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.