Home / 13,438,453.48-18,539,235.30-8,541,055.72

Finding the Fourth Proportional to 13,438,453.48, 18,539,235.30 and 8,541,055.72

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Solution

The fourth proportional to 13,438,453.48, 18,539,235.30 and 8,541,055.72 is: 11,782,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,453.48 : 18,539,235.30 = 8,541,055.72 : x
  2. Step 2: Convert to fraction form
    13,438,453.48/18,539,235.30 = 8,541,055.72/x
  3. Step 3: Cross multiply
    13,438,453.48x = 18,539,235.30 × 8,541,055.72
  4. Step 4: Simplify right side
    13,438,453.48x = 158,344,641,703,490.94
  5. Step 5: Solve for x
    x = 158,344,641,703,490.94/13,438,453.48
  6. Step 6: Final answer
    x = 11,782,951.21

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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.