Home / 497,027,551,763.84-685,914,945,153.93-288,438,324,660.79

Finding the Fourth Proportional to 497,027,551,763.84, 685,914,945,153.93 and 288,438,324,660.79

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Solution

The fourth proportional to 497,027,551,763.84, 685,914,945,153.93 and 288,438,324,660.79 is: 398,054,709,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,027,551,763.84 : 685,914,945,153.93 = 288,438,324,660.79 : x
  2. Step 2: Convert to fraction form
    497,027,551,763.84/685,914,945,153.93 = 288,438,324,660.79/x
  3. Step 3: Cross multiply
    497,027,551,763.84x = 685,914,945,153.93 × 288,438,324,660.79
  4. Step 4: Simplify right side
    497,027,551,763.84x = 197,844,157,639,997,228,318,720
  5. Step 5: Solve for x
    x = 197,844,157,639,997,228,318,720/497,027,551,763.84
  6. Step 6: Final answer
    x = 398,054,709,317.21

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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.