Home / 40,127,921.51-55,376,857.10-21,793,338.23

Finding the Fourth Proportional to 40,127,921.51, 55,376,857.10 and 21,793,338.23

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Solution

The fourth proportional to 40,127,921.51, 55,376,857.10 and 21,793,338.23 is: 30,074,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127,921.51 : 55,376,857.10 = 21,793,338.23 : x
  2. Step 2: Convert to fraction form
    40,127,921.51/55,376,857.10 = 21,793,338.23/x
  3. Step 3: Cross multiply
    40,127,921.51x = 55,376,857.10 × 21,793,338.23
  4. Step 4: Simplify right side
    40,127,921.51x = 1,206,846,576,672,276
  5. Step 5: Solve for x
    x = 1,206,846,576,672,276/40,127,921.51
  6. Step 6: Final answer
    x = 30,074,983.49

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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.