Home / 31,590,109.80-47,385,164.70-18,825,028.20

Finding the Fourth Proportional to 31,590,109.80, 47,385,164.70 and 18,825,028.20

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Solution

The fourth proportional to 31,590,109.80, 47,385,164.70 and 18,825,028.20 is: 28,237,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590,109.80 : 47,385,164.70 = 18,825,028.20 : x
  2. Step 2: Convert to fraction form
    31,590,109.80/47,385,164.70 = 18,825,028.20/x
  3. Step 3: Cross multiply
    31,590,109.80x = 47,385,164.70 × 18,825,028.20
  4. Step 4: Simplify right side
    31,590,109.80x = 892,027,061,739,144.50
  5. Step 5: Solve for x
    x = 892,027,061,739,144.50/31,590,109.80
  6. Step 6: Final answer
    x = 28,237,542.30

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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.