Home / 515,450,451.88-711,321,739.62-283,663,443.88

Finding the Fourth Proportional to 515,450,451.88, 711,321,739.62 and 283,663,443.88

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Solution

The fourth proportional to 515,450,451.88, 711,321,739.62 and 283,663,443.88 is: 391,455,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,450,451.88 : 711,321,739.62 = 283,663,443.88 : x
  2. Step 2: Convert to fraction form
    515,450,451.88/711,321,739.62 = 283,663,443.88/x
  3. Step 3: Cross multiply
    515,450,451.88x = 711,321,739.62 × 283,663,443.88
  4. Step 4: Simplify right side
    515,450,451.88x = 201,775,974,367,321,856
  5. Step 5: Solve for x
    x = 201,775,974,367,321,856/515,450,451.88
  6. Step 6: Final answer
    x = 391,455,616.41

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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.