Home / 3,109,912.02-4,290,211.20-1,819,953.78

Finding the Fourth Proportional to 3,109,912.02, 4,290,211.20 and 1,819,953.78

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Solution

The fourth proportional to 3,109,912.02, 4,290,211.20 and 1,819,953.78 is: 2,510,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,912.02 : 4,290,211.20 = 1,819,953.78 : x
  2. Step 2: Convert to fraction form
    3,109,912.02/4,290,211.20 = 1,819,953.78/x
  3. Step 3: Cross multiply
    3,109,912.02x = 4,290,211.20 × 1,819,953.78
  4. Step 4: Simplify right side
    3,109,912.02x = 7,807,986,090,438.34
  5. Step 5: Solve for x
    x = 7,807,986,090,438.34/3,109,912.02
  6. Step 6: Final answer
    x = 2,510,677.49

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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.