Home / 13,418,807.76-18,517,465.80-7,307,102.16

Finding the Fourth Proportional to 13,418,807.76, 18,517,465.80 and 7,307,102.16

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Solution

The fourth proportional to 13,418,807.76, 18,517,465.80 and 7,307,102.16 is: 10,083,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418,807.76 : 18,517,465.80 = 7,307,102.16 : x
  2. Step 2: Convert to fraction form
    13,418,807.76/18,517,465.80 = 7,307,102.16/x
  3. Step 3: Cross multiply
    13,418,807.76x = 18,517,465.80 × 7,307,102.16
  4. Step 4: Simplify right side
    13,418,807.76x = 135,309,014,344,906.14
  5. Step 5: Solve for x
    x = 135,309,014,344,906.14/13,418,807.76
  6. Step 6: Final answer
    x = 10,083,534.75

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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.