Home / 38,663,940.64-53,354,803.80-21,259,250.32

Finding the Fourth Proportional to 38,663,940.64, 53,354,803.80 and 21,259,250.32

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Solution

The fourth proportional to 38,663,940.64, 53,354,803.80 and 21,259,250.32 is: 29,336,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,663,940.64 : 53,354,803.80 = 21,259,250.32 : x
  2. Step 2: Convert to fraction form
    38,663,940.64/53,354,803.80 = 21,259,250.32/x
  3. Step 3: Cross multiply
    38,663,940.64x = 53,354,803.80 × 21,259,250.32
  4. Step 4: Simplify right side
    38,663,940.64x = 1,134,283,129,758,687.25
  5. Step 5: Solve for x
    x = 1,134,283,129,758,687.25/38,663,940.64
  6. Step 6: Final answer
    x = 29,336,976.81

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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.