Home / 18,513,625.90-27,781,789.63-8,287,132.58

Finding the Fourth Proportional to 18,513,625.90, 27,781,789.63 and 8,287,132.58

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Solution

The fourth proportional to 18,513,625.90, 27,781,789.63 and 8,287,132.58 is: 12,435,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513,625.90 : 27,781,789.63 = 8,287,132.58 : x
  2. Step 2: Convert to fraction form
    18,513,625.90/27,781,789.63 = 8,287,132.58/x
  3. Step 3: Cross multiply
    18,513,625.90x = 27,781,789.63 × 8,287,132.58
  4. Step 4: Simplify right side
    18,513,625.90x = 230,231,373,973,479.12
  5. Step 5: Solve for x
    x = 230,231,373,973,479.12/18,513,625.90
  6. Step 6: Final answer
    x = 12,435,779.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.