Home / 638,501,010.84-881,157,023.64-356,268,103.80

Finding the Fourth Proportional to 638,501,010.84, 881,157,023.64 and 356,268,103.80

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Solution

The fourth proportional to 638,501,010.84, 881,157,023.64 and 356,268,103.80 is: 491,664,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,501,010.84 : 881,157,023.64 = 356,268,103.80 : x
  2. Step 2: Convert to fraction form
    638,501,010.84/881,157,023.64 = 356,268,103.80/x
  3. Step 3: Cross multiply
    638,501,010.84x = 881,157,023.64 × 356,268,103.80
  4. Step 4: Simplify right side
    638,501,010.84x = 313,928,141,962,274,560
  5. Step 5: Solve for x
    x = 313,928,141,962,274,560/638,501,010.84
  6. Step 6: Final answer
    x = 491,664,283.43

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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.