Home / 642,052,398.06-886,086,952.83-363,643,448.94

Finding the Fourth Proportional to 642,052,398.06, 886,086,952.83 and 363,643,448.94

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Solution

The fourth proportional to 642,052,398.06, 886,086,952.83 and 363,643,448.94 is: 501,858,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,052,398.06 : 886,086,952.83 = 363,643,448.94 : x
  2. Step 2: Convert to fraction form
    642,052,398.06/886,086,952.83 = 363,643,448.94/x
  3. Step 3: Cross multiply
    642,052,398.06x = 886,086,952.83 × 363,643,448.94
  4. Step 4: Simplify right side
    642,052,398.06x = 322,219,715,587,836,288
  5. Step 5: Solve for x
    x = 322,219,715,587,836,288/642,052,398.06
  6. Step 6: Final answer
    x = 501,858,908.34

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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.