Home / 512,521,715,453.31-768,244,416,943.02-172,442,835,420.75

Finding the Fourth Proportional to 512,521,715,453.31, 768,244,416,943.02 and 172,442,835,420.75

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Solution

The fourth proportional to 512,521,715,453.31, 768,244,416,943.02 and 172,442,835,420.75 is: 258,483,185,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,521,715,453.31 : 768,244,416,943.02 = 172,442,835,420.75 : x
  2. Step 2: Convert to fraction form
    512,521,715,453.31/768,244,416,943.02 = 172,442,835,420.75/x
  3. Step 3: Cross multiply
    512,521,715,453.31x = 768,244,416,943.02 × 172,442,835,420.75
  4. Step 4: Simplify right side
    512,521,715,453.31x = 132,478,245,553,815,242,670,080
  5. Step 5: Solve for x
    x = 132,478,245,553,815,242,670,080/512,521,715,453.31
  6. Step 6: Final answer
    x = 258,483,185,315.66

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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.