Home / 12,359,791.20-18,552,128.40-5,975,176.80

Finding the Fourth Proportional to 12,359,791.20, 18,552,128.40 and 5,975,176.80

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Solution

The fourth proportional to 12,359,791.20, 18,552,128.40 and 5,975,176.80 is: 8,968,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359,791.20 : 18,552,128.40 = 5,975,176.80 : x
  2. Step 2: Convert to fraction form
    12,359,791.20/18,552,128.40 = 5,975,176.80/x
  3. Step 3: Cross multiply
    12,359,791.20x = 18,552,128.40 × 5,975,176.80
  4. Step 4: Simplify right side
    12,359,791.20x = 110,852,247,206,301.11
  5. Step 5: Solve for x
    x = 110,852,247,206,301.11/12,359,791.20
  6. Step 6: Final answer
    x = 8,968,779.93

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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.