Home / 21,027,816.38-29,018,764.52-12,332,260.64

Finding the Fourth Proportional to 21,027,816.38, 29,018,764.52 and 12,332,260.64

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Solution

The fourth proportional to 21,027,816.38, 29,018,764.52 and 12,332,260.64 is: 17,018,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027,816.38 : 29,018,764.52 = 12,332,260.64 : x
  2. Step 2: Convert to fraction form
    21,027,816.38/29,018,764.52 = 12,332,260.64/x
  3. Step 3: Cross multiply
    21,027,816.38x = 29,018,764.52 × 12,332,260.64
  4. Step 4: Simplify right side
    21,027,816.38x = 357,866,967,511,424.50
  5. Step 5: Solve for x
    x = 357,866,967,511,424.50/21,027,816.38
  6. Step 6: Final answer
    x = 17,018,741.32

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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.