Home / 12,126,780.40-18,192,697.80-4,042,267.60

Finding the Fourth Proportional to 12,126,780.40, 18,192,697.80 and 4,042,267.60

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Solution

The fourth proportional to 12,126,780.40, 18,192,697.80 and 4,042,267.60 is: 6,064,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,780.40 : 18,192,697.80 = 4,042,267.60 : x
  2. Step 2: Convert to fraction form
    12,126,780.40/18,192,697.80 = 4,042,267.60/x
  3. Step 3: Cross multiply
    12,126,780.40x = 18,192,697.80 × 4,042,267.60
  4. Step 4: Simplify right side
    12,126,780.40x = 73,539,752,873,531.28
  5. Step 5: Solve for x
    x = 73,539,752,873,531.28/12,126,780.40
  6. Step 6: Final answer
    x = 6,064,243.80

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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.