Home / 10,109,638.80-15,164,458.20-5,621,914.80

Finding the Fourth Proportional to 10,109,638.80, 15,164,458.20 and 5,621,914.80

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Solution

The fourth proportional to 10,109,638.80, 15,164,458.20 and 5,621,914.80 is: 8,432,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,638.80 : 15,164,458.20 = 5,621,914.80 : x
  2. Step 2: Convert to fraction form
    10,109,638.80/15,164,458.20 = 5,621,914.80/x
  3. Step 3: Cross multiply
    10,109,638.80x = 15,164,458.20 × 5,621,914.80
  4. Step 4: Simplify right side
    10,109,638.80x = 85,253,291,988,561.36
  5. Step 5: Solve for x
    x = 85,253,291,988,561.36/10,109,638.80
  6. Step 6: Final answer
    x = 8,432,872.20

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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.