Home / 13,609,479.41-18,781,025.31-7,414,507.11

Finding the Fourth Proportional to 13,609,479.41, 18,781,025.31 and 7,414,507.11

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Solution

The fourth proportional to 13,609,479.41, 18,781,025.31 and 7,414,507.11 is: 10,231,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,479.41 : 18,781,025.31 = 7,414,507.11 : x
  2. Step 2: Convert to fraction form
    13,609,479.41/18,781,025.31 = 7,414,507.11/x
  3. Step 3: Cross multiply
    13,609,479.41x = 18,781,025.31 × 7,414,507.11
  4. Step 4: Simplify right side
    13,609,479.41x = 139,252,045,658,870.53
  5. Step 5: Solve for x
    x = 139,252,045,658,870.53/13,609,479.41
  6. Step 6: Final answer
    x = 10,231,989.15

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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.