Home / 13,438,348.38-18,542,764.35-7,557,965.46

Finding the Fourth Proportional to 13,438,348.38, 18,542,764.35 and 7,557,965.46

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Solution

The fourth proportional to 13,438,348.38, 18,542,764.35 and 7,557,965.46 is: 10,428,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,348.38 : 18,542,764.35 = 7,557,965.46 : x
  2. Step 2: Convert to fraction form
    13,438,348.38/18,542,764.35 = 7,557,965.46/x
  3. Step 3: Cross multiply
    13,438,348.38x = 18,542,764.35 × 7,557,965.46
  4. Step 4: Simplify right side
    13,438,348.38x = 140,145,572,490,219.36
  5. Step 5: Solve for x
    x = 140,145,572,490,219.36/13,438,348.38
  6. Step 6: Final answer
    x = 10,428,779.53

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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.