Home / 12,507,483.72-18,764,460.20-7,324,470.05

Finding the Fourth Proportional to 12,507,483.72, 18,764,460.20 and 7,324,470.05

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Solution

The fourth proportional to 12,507,483.72, 18,764,460.20 and 7,324,470.05 is: 10,988,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,483.72 : 18,764,460.20 = 7,324,470.05 : x
  2. Step 2: Convert to fraction form
    12,507,483.72/18,764,460.20 = 7,324,470.05/x
  3. Step 3: Cross multiply
    12,507,483.72x = 18,764,460.20 × 7,324,470.05
  4. Step 4: Simplify right side
    12,507,483.72x = 137,439,726,645,494.70
  5. Step 5: Solve for x
    x = 137,439,726,645,494.70/12,507,483.72
  6. Step 6: Final answer
    x = 10,988,599.28

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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.