Home / 20,960,100.80-31,365,501.60-14,540,235.20

Finding the Fourth Proportional to 20,960,100.80, 31,365,501.60 and 14,540,235.20

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Solution

The fourth proportional to 20,960,100.80, 31,365,501.60 and 14,540,235.20 is: 21,758,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960,100.80 : 31,365,501.60 = 14,540,235.20 : x
  2. Step 2: Convert to fraction form
    20,960,100.80/31,365,501.60 = 14,540,235.20/x
  3. Step 3: Cross multiply
    20,960,100.80x = 31,365,501.60 × 14,540,235.20
  4. Step 4: Simplify right side
    20,960,100.80x = 456,061,770,429,976.31
  5. Step 5: Solve for x
    x = 456,061,770,429,976.31/20,960,100.80
  6. Step 6: Final answer
    x = 21,758,567.61

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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.