Home / 21,289,599.18-29,379,657.60-11,500,042.86

Finding the Fourth Proportional to 21,289,599.18, 29,379,657.60 and 11,500,042.86

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Solution

The fourth proportional to 21,289,599.18, 29,379,657.60 and 11,500,042.86 is: 15,870,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,599.18 : 29,379,657.60 = 11,500,042.86 : x
  2. Step 2: Convert to fraction form
    21,289,599.18/29,379,657.60 = 11,500,042.86/x
  3. Step 3: Cross multiply
    21,289,599.18x = 29,379,657.60 × 11,500,042.86
  4. Step 4: Simplify right side
    21,289,599.18x = 337,867,321,612,124.75
  5. Step 5: Solve for x
    x = 337,867,321,612,124.75/21,289,599.18
  6. Step 6: Final answer
    x = 15,870,064.94

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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.