Home / 78,172,139.52-117,259,058.16-23,585,214.06

Finding the Fourth Proportional to 78,172,139.52, 117,259,058.16 and 23,585,214.06

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Solution

The fourth proportional to 78,172,139.52, 117,259,058.16 and 23,585,214.06 is: 35,378,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,172,139.52 : 117,259,058.16 = 23,585,214.06 : x
  2. Step 2: Convert to fraction form
    78,172,139.52/117,259,058.16 = 23,585,214.06/x
  3. Step 3: Cross multiply
    78,172,139.52x = 117,259,058.16 × 23,585,214.06
  4. Step 4: Simplify right side
    78,172,139.52x = 2,765,579,987,177,589.50
  5. Step 5: Solve for x
    x = 2,765,579,987,177,589.50/78,172,139.52
  6. Step 6: Final answer
    x = 35,378,077.20

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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.