Home / 145,451,823.78-200,727,755.79-79,376,578.05

Finding the Fourth Proportional to 145,451,823.78, 200,727,755.79 and 79,376,578.05

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Solution

The fourth proportional to 145,451,823.78, 200,727,755.79 and 79,376,578.05 is: 109,541,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,451,823.78 : 200,727,755.79 = 79,376,578.05 : x
  2. Step 2: Convert to fraction form
    145,451,823.78/200,727,755.79 = 79,376,578.05/x
  3. Step 3: Cross multiply
    145,451,823.78x = 200,727,755.79 × 79,376,578.05
  4. Step 4: Simplify right side
    145,451,823.78x = 15,933,082,373,869,390
  5. Step 5: Solve for x
    x = 15,933,082,373,869,390/145,451,823.78
  6. Step 6: Final answer
    x = 109,541,991.02

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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.