Home / 12,419,778.80-17,139,488.63-6,913,213.52

Finding the Fourth Proportional to 12,419,778.80, 17,139,488.63 and 6,913,213.52

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Solution

The fourth proportional to 12,419,778.80, 17,139,488.63 and 6,913,213.52 is: 9,540,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419,778.80 : 17,139,488.63 = 6,913,213.52 : x
  2. Step 2: Convert to fraction form
    12,419,778.80/17,139,488.63 = 6,913,213.52/x
  3. Step 3: Cross multiply
    12,419,778.80x = 17,139,488.63 × 6,913,213.52
  4. Step 4: Simplify right side
    12,419,778.80x = 118,488,944,402,538.77
  5. Step 5: Solve for x
    x = 118,488,944,402,538.77/12,419,778.80
  6. Step 6: Final answer
    x = 9,540,342.57

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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.