Home / 18,924,615.45-28,386,513.32-5,277,397.68

Finding the Fourth Proportional to 18,924,615.45, 28,386,513.32 and 5,277,397.68

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Solution

The fourth proportional to 18,924,615.45, 28,386,513.32 and 5,277,397.68 is: 7,915,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924,615.45 : 28,386,513.32 = 5,277,397.68 : x
  2. Step 2: Convert to fraction form
    18,924,615.45/28,386,513.32 = 5,277,397.68/x
  3. Step 3: Cross multiply
    18,924,615.45x = 28,386,513.32 × 5,277,397.68
  4. Step 4: Simplify right side
    18,924,615.45x = 149,806,919,511,870.09
  5. Step 5: Solve for x
    x = 149,806,919,511,870.09/18,924,615.45
  6. Step 6: Final answer
    x = 7,915,982.22

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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.