Home / 15,269,722.78-21,072,068.97-11,366,931.98

Finding the Fourth Proportional to 15,269,722.78, 21,072,068.97 and 11,366,931.98

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Solution

The fourth proportional to 15,269,722.78, 21,072,068.97 and 11,366,931.98 is: 15,686,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269,722.78 : 21,072,068.97 = 11,366,931.98 : x
  2. Step 2: Convert to fraction form
    15,269,722.78/21,072,068.97 = 11,366,931.98/x
  3. Step 3: Cross multiply
    15,269,722.78x = 21,072,068.97 × 11,366,931.98
  4. Step 4: Simplify right side
    15,269,722.78x = 239,524,774,551,382.44
  5. Step 5: Solve for x
    x = 239,524,774,551,382.44/15,269,722.78
  6. Step 6: Final answer
    x = 15,686,255.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.