Home / 501,154,431.26-691,584,629.52-281,133,133.34

Finding the Fourth Proportional to 501,154,431.26, 691,584,629.52 and 281,133,133.34

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Solution

The fourth proportional to 501,154,431.26, 691,584,629.52 and 281,133,133.34 is: 387,958,963.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,154,431.26 : 691,584,629.52 = 281,133,133.34 : x
  2. Step 2: Convert to fraction form
    501,154,431.26/691,584,629.52 = 281,133,133.34/x
  3. Step 3: Cross multiply
    501,154,431.26x = 691,584,629.52 × 281,133,133.34
  4. Step 4: Simplify right side
    501,154,431.26x = 194,427,353,866,740,640
  5. Step 5: Solve for x
    x = 194,427,353,866,740,640/501,154,431.26
  6. Step 6: Final answer
    x = 387,958,963.82

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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.