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Finding the Fourth Proportional to 17,908,923.20, 26,863,384.80 and 15,137,556.80

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Solution

The fourth proportional to 17,908,923.20, 26,863,384.80 and 15,137,556.80 is: 22,706,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908,923.20 : 26,863,384.80 = 15,137,556.80 : x
  2. Step 2: Convert to fraction form
    17,908,923.20/26,863,384.80 = 15,137,556.80/x
  3. Step 3: Cross multiply
    17,908,923.20x = 26,863,384.80 × 15,137,556.80
  4. Step 4: Simplify right side
    17,908,923.20x = 406,646,013,250,256.69
  5. Step 5: Solve for x
    x = 406,646,013,250,256.69/17,908,923.20
  6. Step 6: Final answer
    x = 22,706,335.20

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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.