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Finding the Fourth Proportional to 15,552,647.80, 23,328,971.70 and 8,722,209.40

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Solution

The fourth proportional to 15,552,647.80, 23,328,971.70 and 8,722,209.40 is: 13,083,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552,647.80 : 23,328,971.70 = 8,722,209.40 : x
  2. Step 2: Convert to fraction form
    15,552,647.80/23,328,971.70 = 8,722,209.40/x
  3. Step 3: Cross multiply
    15,552,647.80x = 23,328,971.70 × 8,722,209.40
  4. Step 4: Simplify right side
    15,552,647.80x = 203,480,176,254,073.97
  5. Step 5: Solve for x
    x = 203,480,176,254,073.97/15,552,647.80
  6. Step 6: Final answer
    x = 13,083,314.10

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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.