Home / 13,135,828.57-18,127,335.19-7,175,240.29

Finding the Fourth Proportional to 13,135,828.57, 18,127,335.19 and 7,175,240.29

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Solution

The fourth proportional to 13,135,828.57, 18,127,335.19 and 7,175,240.29 is: 9,901,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,828.57 : 18,127,335.19 = 7,175,240.29 : x
  2. Step 2: Convert to fraction form
    13,135,828.57/18,127,335.19 = 7,175,240.29/x
  3. Step 3: Cross multiply
    13,135,828.57x = 18,127,335.19 × 7,175,240.29
  4. Step 4: Simplify right side
    13,135,828.57x = 130,067,985,805,622.81
  5. Step 5: Solve for x
    x = 130,067,985,805,622.81/13,135,828.57
  6. Step 6: Final answer
    x = 9,901,772.48

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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.