Home / 7,188,122.19-9,919,569.13-3,924,913.75

Finding the Fourth Proportional to 7,188,122.19, 9,919,569.13 and 3,924,913.75

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Solution

The fourth proportional to 7,188,122.19, 9,919,569.13 and 3,924,913.75 is: 5,416,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188,122.19 : 9,919,569.13 = 3,924,913.75 : x
  2. Step 2: Convert to fraction form
    7,188,122.19/9,919,569.13 = 3,924,913.75/x
  3. Step 3: Cross multiply
    7,188,122.19x = 9,919,569.13 × 3,924,913.75
  4. Step 4: Simplify right side
    7,188,122.19x = 38,933,453,272,412.54
  5. Step 5: Solve for x
    x = 38,933,453,272,412.54/7,188,122.19
  6. Step 6: Final answer
    x = 5,416,359.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.