Home / 3,939,920.80-5,909,881.20-3,442,256.80

Finding the Fourth Proportional to 3,939,920.80, 5,909,881.20 and 3,442,256.80

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Solution

The fourth proportional to 3,939,920.80, 5,909,881.20 and 3,442,256.80 is: 5,163,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,920.80 : 5,909,881.20 = 3,442,256.80 : x
  2. Step 2: Convert to fraction form
    3,939,920.80/5,909,881.20 = 3,442,256.80/x
  3. Step 3: Cross multiply
    3,939,920.80x = 5,909,881.20 × 3,442,256.80
  4. Step 4: Simplify right side
    3,939,920.80x = 20,343,328,747,892.16
  5. Step 5: Solve for x
    x = 20,343,328,747,892.16/3,939,920.80
  6. Step 6: Final answer
    x = 5,163,385.20

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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.