Home / 31,552,230.80-47,328,346.20-20,781,693.20

Finding the Fourth Proportional to 31,552,230.80, 47,328,346.20 and 20,781,693.20

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Solution

The fourth proportional to 31,552,230.80, 47,328,346.20 and 20,781,693.20 is: 31,172,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,552,230.80 : 47,328,346.20 = 20,781,693.20 : x
  2. Step 2: Convert to fraction form
    31,552,230.80/47,328,346.20 = 20,781,693.20/x
  3. Step 3: Cross multiply
    31,552,230.80x = 47,328,346.20 × 20,781,693.20
  4. Step 4: Simplify right side
    31,552,230.80x = 983,563,170,391,785.88
  5. Step 5: Solve for x
    x = 983,563,170,391,785.88/31,552,230.80
  6. Step 6: Final answer
    x = 31,172,539.80

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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.