Home / 501,154,428.25-691,584,625.38-281,133,130.33

Finding the Fourth Proportional to 501,154,428.25, 691,584,625.38 and 281,133,130.33

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Solution

The fourth proportional to 501,154,428.25, 691,584,625.38 and 281,133,130.33 is: 387,958,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,154,428.25 : 691,584,625.38 = 281,133,130.33 : x
  2. Step 2: Convert to fraction form
    501,154,428.25/691,584,625.38 = 281,133,130.33/x
  3. Step 3: Cross multiply
    501,154,428.25x = 691,584,625.38 × 281,133,130.33
  4. Step 4: Simplify right side
    501,154,428.25x = 194,427,350,621,179,744
  5. Step 5: Solve for x
    x = 194,427,350,621,179,744/501,154,428.25
  6. Step 6: Final answer
    x = 387,958,959.68

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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.