Home / 13,587,577.16-18,751,372.25-7,787,478.20

Finding the Fourth Proportional to 13,587,577.16, 18,751,372.25 and 7,787,478.20

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Solution

The fourth proportional to 13,587,577.16, 18,751,372.25 and 7,787,478.20 is: 10,747,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587,577.16 : 18,751,372.25 = 7,787,478.20 : x
  2. Step 2: Convert to fraction form
    13,587,577.16/18,751,372.25 = 7,787,478.20/x
  3. Step 3: Cross multiply
    13,587,577.16x = 18,751,372.25 × 7,787,478.20
  4. Step 4: Simplify right side
    13,587,577.16x = 146,025,902,484,265.72
  5. Step 5: Solve for x
    x = 146,025,902,484,265.72/13,587,577.16
  6. Step 6: Final answer
    x = 10,747,015.51

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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.