Home / 8,791,779.52-12,138,580.40-5,489,107.43

Finding the Fourth Proportional to 8,791,779.52, 12,138,580.40 and 5,489,107.43

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Solution

The fourth proportional to 8,791,779.52, 12,138,580.40 and 5,489,107.43 is: 7,578,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,779.52 : 12,138,580.40 = 5,489,107.43 : x
  2. Step 2: Convert to fraction form
    8,791,779.52/12,138,580.40 = 5,489,107.43/x
  3. Step 3: Cross multiply
    8,791,779.52x = 12,138,580.40 × 5,489,107.43
  4. Step 4: Simplify right side
    8,791,779.52x = 66,629,971,835,846.83
  5. Step 5: Solve for x
    x = 66,629,971,835,846.83/8,791,779.52
  6. Step 6: Final answer
    x = 7,578,667.29

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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.