Home / 21,240,005.49-31,835,896.56-18,676,258.29

Finding the Fourth Proportional to 21,240,005.49, 31,835,896.56 and 18,676,258.29

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Solution

The fourth proportional to 21,240,005.49, 31,835,896.56 and 18,676,258.29 is: 27,993,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240,005.49 : 31,835,896.56 = 18,676,258.29 : x
  2. Step 2: Convert to fraction form
    21,240,005.49/31,835,896.56 = 18,676,258.29/x
  3. Step 3: Cross multiply
    21,240,005.49x = 31,835,896.56 × 18,676,258.29
  4. Step 4: Simplify right side
    21,240,005.49x = 594,575,427,048,282.38
  5. Step 5: Solve for x
    x = 594,575,427,048,282.38/21,240,005.49
  6. Step 6: Final answer
    x = 27,993,186.13

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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.