Home / 31,638,717.28-43,661,036.70-18,587,166.04

Finding the Fourth Proportional to 31,638,717.28, 43,661,036.70 and 18,587,166.04

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Solution

The fourth proportional to 31,638,717.28, 43,661,036.70 and 18,587,166.04 is: 25,650,058.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,717.28 : 43,661,036.70 = 18,587,166.04 : x
  2. Step 2: Convert to fraction form
    31,638,717.28/43,661,036.70 = 18,587,166.04/x
  3. Step 3: Cross multiply
    31,638,717.28x = 43,661,036.70 × 18,587,166.04
  4. Step 4: Simplify right side
    31,638,717.28x = 811,534,938,621,433.62
  5. Step 5: Solve for x
    x = 811,534,938,621,433.62/31,638,717.28
  6. Step 6: Final answer
    x = 25,650,058.17

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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.