Home / 18,676,422.90-28,019,192.52-7,161,684.48

Finding the Fourth Proportional to 18,676,422.90, 28,019,192.52 and 7,161,684.48

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Solution

The fourth proportional to 18,676,422.90, 28,019,192.52 and 7,161,684.48 is: 10,744,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,422.90 : 28,019,192.52 = 7,161,684.48 : x
  2. Step 2: Convert to fraction form
    18,676,422.90/28,019,192.52 = 7,161,684.48/x
  3. Step 3: Cross multiply
    18,676,422.90x = 28,019,192.52 × 7,161,684.48
  4. Step 4: Simplify right side
    18,676,422.90x = 200,664,616,212,616.09
  5. Step 5: Solve for x
    x = 200,664,616,212,616.09/18,676,422.90
  6. Step 6: Final answer
    x = 10,744,274.60

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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.