Home / 138,971,538,891.12-208,362,142,489.68-70,770,583,428.24

Finding the Fourth Proportional to 138,971,538,891.12, 208,362,142,489.68 and 70,770,583,428.24

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Solution

The fourth proportional to 138,971,538,891.12, 208,362,142,489.68 and 70,770,583,428.24 is: 106,107,412,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,971,538,891.12 : 208,362,142,489.68 = 70,770,583,428.24 : x
  2. Step 2: Convert to fraction form
    138,971,538,891.12/208,362,142,489.68 = 70,770,583,428.24/x
  3. Step 3: Cross multiply
    138,971,538,891.12x = 208,362,142,489.68 × 70,770,583,428.24
  4. Step 4: Simplify right side
    138,971,538,891.12x = 14,745,910,388,352,729,743,360
  5. Step 5: Solve for x
    x = 14,745,910,388,352,729,743,360/138,971,538,891.12
  6. Step 6: Final answer
    x = 106,107,412,395.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.