Home / 3,178,365.20-4,385,151.72-1,819,988.24

Finding the Fourth Proportional to 3,178,365.20, 4,385,151.72 and 1,819,988.24

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Solution

The fourth proportional to 3,178,365.20, 4,385,151.72 and 1,819,988.24 is: 2,511,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,365.20 : 4,385,151.72 = 1,819,988.24 : x
  2. Step 2: Convert to fraction form
    3,178,365.20/4,385,151.72 = 1,819,988.24/x
  3. Step 3: Cross multiply
    3,178,365.20x = 4,385,151.72 × 1,819,988.24
  4. Step 4: Simplify right side
    3,178,365.20x = 7,980,924,561,015.77
  5. Step 5: Solve for x
    x = 7,980,924,561,015.77/3,178,365.20
  6. Step 6: Final answer
    x = 2,511,015.59

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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.