Home / 142,261,839.36-196,321,538.16-77,071,743.36

Finding the Fourth Proportional to 142,261,839.36, 196,321,538.16 and 77,071,743.36

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Solution

The fourth proportional to 142,261,839.36, 196,321,538.16 and 77,071,743.36 is: 106,359,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,261,839.36 : 196,321,538.16 = 77,071,743.36 : x
  2. Step 2: Convert to fraction form
    142,261,839.36/196,321,538.16 = 77,071,743.36/x
  3. Step 3: Cross multiply
    142,261,839.36x = 196,321,538.16 × 77,071,743.36
  4. Step 4: Simplify right side
    142,261,839.36x = 15,130,843,205,107,966
  5. Step 5: Solve for x
    x = 15,130,843,205,107,966/142,261,839.36
  6. Step 6: Final answer
    x = 106,359,114.10

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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.