Home / 145,322,912.82-200,544,155.70-79,243,244.04

Finding the Fourth Proportional to 145,322,912.82, 200,544,155.70 and 79,243,244.04

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Solution

The fourth proportional to 145,322,912.82, 200,544,155.70 and 79,243,244.04 is: 109,354,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,322,912.82 : 200,544,155.70 = 79,243,244.04 : x
  2. Step 2: Convert to fraction form
    145,322,912.82/200,544,155.70 = 79,243,244.04/x
  3. Step 3: Cross multiply
    145,322,912.82x = 200,544,155.70 × 79,243,244.04
  4. Step 4: Simplify right side
    145,322,912.82x = 15,891,769,470,930,858
  5. Step 5: Solve for x
    x = 15,891,769,470,930,858/145,322,912.82
  6. Step 6: Final answer
    x = 109,354,878.47

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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.