Home / 497,027,551,765.60-685,914,945,156.36-288,438,324,662.53

Finding the Fourth Proportional to 497,027,551,765.60, 685,914,945,156.36 and 288,438,324,662.53

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Solution

The fourth proportional to 497,027,551,765.60, 685,914,945,156.36 and 288,438,324,662.53 is: 398,054,709,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,027,551,765.60 : 685,914,945,156.36 = 288,438,324,662.53 : x
  2. Step 2: Convert to fraction form
    497,027,551,765.60/685,914,945,156.36 = 288,438,324,662.53/x
  3. Step 3: Cross multiply
    497,027,551,765.60x = 685,914,945,156.36 × 288,438,324,662.53
  4. Step 4: Simplify right side
    497,027,551,765.60x = 197,844,157,641,891,644,440,576
  5. Step 5: Solve for x
    x = 197,844,157,641,891,644,440,576/497,027,551,765.60
  6. Step 6: Final answer
    x = 398,054,709,319.61

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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.