Home / 18,158,113.97-25,057,993.27-9,897,995.40

Finding the Fourth Proportional to 18,158,113.97, 25,057,993.27 and 9,897,995.40

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Solution

The fourth proportional to 18,158,113.97, 25,057,993.27 and 9,897,995.40 is: 13,659,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158,113.97 : 25,057,993.27 = 9,897,995.40 : x
  2. Step 2: Convert to fraction form
    18,158,113.97/25,057,993.27 = 9,897,995.40/x
  3. Step 3: Cross multiply
    18,158,113.97x = 25,057,993.27 × 9,897,995.40
  4. Step 4: Simplify right side
    18,158,113.97x = 248,023,902,119,690.97
  5. Step 5: Solve for x
    x = 248,023,902,119,690.97/18,158,113.97
  6. Step 6: Final answer
    x = 13,659,122.45

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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.