Home / 66,215,019.20-99,322,528.80-18,345,963.20

Finding the Fourth Proportional to 66,215,019.20, 99,322,528.80 and 18,345,963.20

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Solution

The fourth proportional to 66,215,019.20, 99,322,528.80 and 18,345,963.20 is: 27,518,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215,019.20 : 99,322,528.80 = 18,345,963.20 : x
  2. Step 2: Convert to fraction form
    66,215,019.20/99,322,528.80 = 18,345,963.20/x
  3. Step 3: Cross multiply
    66,215,019.20x = 99,322,528.80 × 18,345,963.20
  4. Step 4: Simplify right side
    66,215,019.20x = 1,822,167,458,295,740
  5. Step 5: Solve for x
    x = 1,822,167,458,295,740/66,215,019.20
  6. Step 6: Final answer
    x = 27,518,944.80

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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.