Home / 18,120,958.80-25,006,927.44-9,972,196.80

Finding the Fourth Proportional to 18,120,958.80, 25,006,927.44 and 9,972,196.80

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Solution

The fourth proportional to 18,120,958.80, 25,006,927.44 and 9,972,196.80 is: 13,761,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,958.80 : 25,006,927.44 = 9,972,196.80 : x
  2. Step 2: Convert to fraction form
    18,120,958.80/25,006,927.44 = 9,972,196.80/x
  3. Step 3: Cross multiply
    18,120,958.80x = 25,006,927.44 × 9,972,196.80
  4. Step 4: Simplify right side
    18,120,958.80x = 249,374,001,795,000.22
  5. Step 5: Solve for x
    x = 249,374,001,795,000.22/18,120,958.80
  6. Step 6: Final answer
    x = 13,761,633.95

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1.5x scale

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.