Home / 642,052,419.44-886,086,982.33-363,643,470.32

Finding the Fourth Proportional to 642,052,419.44, 886,086,982.33 and 363,643,470.32

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Solution

The fourth proportional to 642,052,419.44, 886,086,982.33 and 363,643,470.32 is: 501,858,937.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,052,419.44 : 886,086,982.33 = 363,643,470.32 : x
  2. Step 2: Convert to fraction form
    642,052,419.44/886,086,982.33 = 363,643,470.32/x
  3. Step 3: Cross multiply
    642,052,419.44x = 886,086,982.33 × 363,643,470.32
  4. Step 4: Simplify right side
    642,052,419.44x = 322,219,745,254,518,144
  5. Step 5: Solve for x
    x = 322,219,745,254,518,144/642,052,419.44
  6. Step 6: Final answer
    x = 501,858,937.84

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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.