Home / 638,501,012.84-881,157,026.40-356,268,105.80

Finding the Fourth Proportional to 638,501,012.84, 881,157,026.40 and 356,268,105.80

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Solution

The fourth proportional to 638,501,012.84, 881,157,026.40 and 356,268,105.80 is: 491,664,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,501,012.84 : 881,157,026.40 = 356,268,105.80 : x
  2. Step 2: Convert to fraction form
    638,501,012.84/881,157,026.40 = 356,268,105.80/x
  3. Step 3: Cross multiply
    638,501,012.84x = 881,157,026.40 × 356,268,105.80
  4. Step 4: Simplify right side
    638,501,012.84x = 313,928,144,707,888,576
  5. Step 5: Solve for x
    x = 313,928,144,707,888,576/638,501,012.84
  6. Step 6: Final answer
    x = 491,664,286.19

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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.