Home / 65,843,560.11-90,656,809.05-55,900,776.81

Finding the Fourth Proportional to 65,843,560.11, 90,656,809.05 and 55,900,776.81

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Solution

The fourth proportional to 65,843,560.11, 90,656,809.05 and 55,900,776.81 is: 76,967,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,843,560.11 : 90,656,809.05 = 55,900,776.81 : x
  2. Step 2: Convert to fraction form
    65,843,560.11/90,656,809.05 = 55,900,776.81/x
  3. Step 3: Cross multiply
    65,843,560.11x = 90,656,809.05 × 55,900,776.81
  4. Step 4: Simplify right side
    65,843,560.11x = 5,067,786,049,010,838
  5. Step 5: Solve for x
    x = 5,067,786,049,010,838/65,843,560.11
  6. Step 6: Final answer
    x = 76,967,072.26

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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.