Home / 145,322,913.82-200,544,157.08-79,243,245.04

Finding the Fourth Proportional to 145,322,913.82, 200,544,157.08 and 79,243,245.04

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Solution

The fourth proportional to 145,322,913.82, 200,544,157.08 and 79,243,245.04 is: 109,354,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,322,913.82 : 200,544,157.08 = 79,243,245.04 : x
  2. Step 2: Convert to fraction form
    145,322,913.82/200,544,157.08 = 79,243,245.04/x
  3. Step 3: Cross multiply
    145,322,913.82x = 200,544,157.08 × 79,243,245.04
  4. Step 4: Simplify right side
    145,322,913.82x = 15,891,769,780,830,694
  5. Step 5: Solve for x
    x = 15,891,769,780,830,694/145,322,913.82
  6. Step 6: Final answer
    x = 109,354,879.85

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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.