Home / 66,215,019.70-99,322,529.55-18,345,963.70

Finding the Fourth Proportional to 66,215,019.70, 99,322,529.55 and 18,345,963.70

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Solution

The fourth proportional to 66,215,019.70, 99,322,529.55 and 18,345,963.70 is: 27,518,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215,019.70 : 99,322,529.55 = 18,345,963.70 : x
  2. Step 2: Convert to fraction form
    66,215,019.70/99,322,529.55 = 18,345,963.70/x
  3. Step 3: Cross multiply
    66,215,019.70x = 99,322,529.55 × 18,345,963.70
  4. Step 4: Simplify right side
    66,215,019.70x = 1,822,167,521,716,477.25
  5. Step 5: Solve for x
    x = 1,822,167,521,716,477.25/66,215,019.70
  6. Step 6: Final answer
    x = 27,518,945.55

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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.