Home / 515,063,520,996.18-772,595,099,651.49-137,745,505,523.17

Finding the Fourth Proportional to 515,063,520,996.18, 772,595,099,651.49 and 137,745,505,523.17

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Solution

The fourth proportional to 515,063,520,996.18, 772,595,099,651.49 and 137,745,505,523.17 is: 206,618,209,653.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,063,520,996.18 : 772,595,099,651.49 = 137,745,505,523.17 : x
  2. Step 2: Convert to fraction form
    515,063,520,996.18/772,595,099,651.49 = 137,745,505,523.17/x
  3. Step 3: Cross multiply
    515,063,520,996.18x = 772,595,099,651.49 × 137,745,505,523.17
  4. Step 4: Simplify right side
    515,063,520,996.18x = 106,421,502,566,218,407,608,320
  5. Step 5: Solve for x
    x = 106,421,502,566,218,407,608,320/515,063,520,996.18
  6. Step 6: Final answer
    x = 206,618,209,653.81

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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.