Home / 18,500,293.86-27,740,879.01-8,121,264.90

Finding the Fourth Proportional to 18,500,293.86, 27,740,879.01 and 8,121,264.90

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Solution

The fourth proportional to 18,500,293.86, 27,740,879.01 and 8,121,264.90 is: 12,177,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500,293.86 : 27,740,879.01 = 8,121,264.90 : x
  2. Step 2: Convert to fraction form
    18,500,293.86/27,740,879.01 = 8,121,264.90/x
  3. Step 3: Cross multiply
    18,500,293.86x = 27,740,879.01 × 8,121,264.90
  4. Step 4: Simplify right side
    18,500,293.86x = 225,291,026,999,059.78
  5. Step 5: Solve for x
    x = 225,291,026,999,059.78/18,500,293.86
  6. Step 6: Final answer
    x = 12,177,699.92

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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.