Home / 18,379,931.20-27,569,896.80-11,577,486.40

Finding the Fourth Proportional to 18,379,931.20, 27,569,896.80 and 11,577,486.40

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Solution

The fourth proportional to 18,379,931.20, 27,569,896.80 and 11,577,486.40 is: 17,366,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,931.20 : 27,569,896.80 = 11,577,486.40 : x
  2. Step 2: Convert to fraction form
    18,379,931.20/27,569,896.80 = 11,577,486.40/x
  3. Step 3: Cross multiply
    18,379,931.20x = 27,569,896.80 × 11,577,486.40
  4. Step 4: Simplify right side
    18,379,931.20x = 319,190,105,251,403.56
  5. Step 5: Solve for x
    x = 319,190,105,251,403.56/18,379,931.20
  6. Step 6: Final answer
    x = 17,366,229.60

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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.