Home / 13,132,741.90-18,128,020.06-7,905,993.14

Finding the Fourth Proportional to 13,132,741.90, 18,128,020.06 and 7,905,993.14

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Solution

The fourth proportional to 13,132,741.90, 18,128,020.06 and 7,905,993.14 is: 10,913,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132,741.90 : 18,128,020.06 = 7,905,993.14 : x
  2. Step 2: Convert to fraction form
    13,132,741.90/18,128,020.06 = 7,905,993.14/x
  3. Step 3: Cross multiply
    13,132,741.90x = 18,128,020.06 × 7,905,993.14
  4. Step 4: Simplify right side
    13,132,741.90x = 143,320,002,236,142.38
  5. Step 5: Solve for x
    x = 143,320,002,236,142.38/13,132,741.90
  6. Step 6: Final answer
    x = 10,913,181.98

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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.