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Finding the Fourth Proportional to 18,152,923.20, 27,229,384.80 and 6,638,368.20

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Solution

The fourth proportional to 18,152,923.20, 27,229,384.80 and 6,638,368.20 is: 9,957,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152,923.20 : 27,229,384.80 = 6,638,368.20 : x
  2. Step 2: Convert to fraction form
    18,152,923.20/27,229,384.80 = 6,638,368.20/x
  3. Step 3: Cross multiply
    18,152,923.20x = 27,229,384.80 × 6,638,368.20
  4. Step 4: Simplify right side
    18,152,923.20x = 180,758,682,161,883.38
  5. Step 5: Solve for x
    x = 180,758,682,161,883.38/18,152,923.20
  6. Step 6: Final answer
    x = 9,957,552.30

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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.