Home / 680,172,733.34-938,608,177.48-378,773,591.18

Finding the Fourth Proportional to 680,172,733.34, 938,608,177.48 and 378,773,591.18

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Solution

The fourth proportional to 680,172,733.34, 938,608,177.48 and 378,773,591.18 is: 522,690,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,172,733.34 : 938,608,177.48 = 378,773,591.18 : x
  2. Step 2: Convert to fraction form
    680,172,733.34/938,608,177.48 = 378,773,591.18/x
  3. Step 3: Cross multiply
    680,172,733.34x = 938,608,177.48 × 378,773,591.18
  4. Step 4: Simplify right side
    680,172,733.34x = 355,519,990,089,374,400
  5. Step 5: Solve for x
    x = 355,519,990,089,374,400/680,172,733.34
  6. Step 6: Final answer
    x = 522,690,741.14

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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.