Home / 18,886,481.80-28,287,732.30-14,612,792.20

Finding the Fourth Proportional to 18,886,481.80, 28,287,732.30 and 14,612,792.20

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Solution

The fourth proportional to 18,886,481.80, 28,287,732.30 and 14,612,792.20 is: 21,886,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886,481.80 : 28,287,732.30 = 14,612,792.20 : x
  2. Step 2: Convert to fraction form
    18,886,481.80/28,287,732.30 = 14,612,792.20/x
  3. Step 3: Cross multiply
    18,886,481.80x = 28,287,732.30 × 14,612,792.20
  4. Step 4: Simplify right side
    18,886,481.80x = 413,362,753,909,128.06
  5. Step 5: Solve for x
    x = 413,362,753,909,128.06/18,886,481.80
  6. Step 6: Final answer
    x = 21,886,699.61

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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.