Home / 21,240,371.31-29,301,100.65-13,409,588.16

Finding the Fourth Proportional to 21,240,371.31, 29,301,100.65 and 13,409,588.16

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Solution

The fourth proportional to 21,240,371.31, 29,301,100.65 and 13,409,588.16 is: 18,498,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240,371.31 : 29,301,100.65 = 13,409,588.16 : x
  2. Step 2: Convert to fraction form
    21,240,371.31/29,301,100.65 = 13,409,588.16/x
  3. Step 3: Cross multiply
    21,240,371.31x = 29,301,100.65 × 13,409,588.16
  4. Step 4: Simplify right side
    21,240,371.31x = 392,915,692,351,208.31
  5. Step 5: Solve for x
    x = 392,915,692,351,208.31/21,240,371.31
  6. Step 6: Final answer
    x = 18,498,532.19

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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.