Home / 553,321,839.96-763,936,302.78-344,784,346.20

Finding the Fourth Proportional to 553,321,839.96, 763,936,302.78 and 344,784,346.20

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Solution

The fourth proportional to 553,321,839.96, 763,936,302.78 and 344,784,346.20 is: 476,021,836.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,321,839.96 : 763,936,302.78 = 344,784,346.20 : x
  2. Step 2: Convert to fraction form
    553,321,839.96/763,936,302.78 = 344,784,346.20/x
  3. Step 3: Cross multiply
    553,321,839.96x = 763,936,302.78 × 344,784,346.20
  4. Step 4: Simplify right side
    553,321,839.96x = 263,393,278,692,447,520
  5. Step 5: Solve for x
    x = 263,393,278,692,447,520/553,321,839.96
  6. Step 6: Final answer
    x = 476,021,836.97

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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.