Home / 12,125,862.90-18,188,794.35-7,342,893.90

Finding the Fourth Proportional to 12,125,862.90, 18,188,794.35 and 7,342,893.90

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Solution

The fourth proportional to 12,125,862.90, 18,188,794.35 and 7,342,893.90 is: 11,014,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125,862.90 : 18,188,794.35 = 7,342,893.90 : x
  2. Step 2: Convert to fraction form
    12,125,862.90/18,188,794.35 = 7,342,893.90/x
  3. Step 3: Cross multiply
    12,125,862.90x = 18,188,794.35 × 7,342,893.90
  4. Step 4: Simplify right side
    12,125,862.90x = 133,558,387,080,969.48
  5. Step 5: Solve for x
    x = 133,558,387,080,969.48/12,125,862.90
  6. Step 6: Final answer
    x = 11,014,340.85

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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.