Home / 642,052,402.56-886,086,959.04-363,643,453.44

Finding the Fourth Proportional to 642,052,402.56, 886,086,959.04 and 363,643,453.44

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Solution

The fourth proportional to 642,052,402.56, 886,086,959.04 and 363,643,453.44 is: 501,858,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,052,402.56 : 886,086,959.04 = 363,643,453.44 : x
  2. Step 2: Convert to fraction form
    642,052,402.56/886,086,959.04 = 363,643,453.44/x
  3. Step 3: Cross multiply
    642,052,402.56x = 886,086,959.04 × 363,643,453.44
  4. Step 4: Simplify right side
    642,052,402.56x = 322,219,721,833,453,440
  5. Step 5: Solve for x
    x = 322,219,721,833,453,440/642,052,402.56
  6. Step 6: Final answer
    x = 501,858,914.55

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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.