Home / 12,999,245.11-17,938,739.01-7,197,902.29

Finding the Fourth Proportional to 12,999,245.11, 17,938,739.01 and 7,197,902.29

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Solution

The fourth proportional to 12,999,245.11, 17,938,739.01 and 7,197,902.29 is: 9,932,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,245.11 : 17,938,739.01 = 7,197,902.29 : x
  2. Step 2: Convert to fraction form
    12,999,245.11/17,938,739.01 = 7,197,902.29/x
  3. Step 3: Cross multiply
    12,999,245.11x = 17,938,739.01 × 7,197,902.29
  4. Step 4: Simplify right side
    12,999,245.11x = 129,121,290,599,791.34
  5. Step 5: Solve for x
    x = 129,121,290,599,791.34/12,999,245.11
  6. Step 6: Final answer
    x = 9,932,983.76

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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.