Home / 138,136,151.12-190,609,797.51-82,388,114.28

Finding the Fourth Proportional to 138,136,151.12, 190,609,797.51 and 82,388,114.28

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Solution

The fourth proportional to 138,136,151.12, 190,609,797.51 and 82,388,114.28 is: 113,684,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,136,151.12 : 190,609,797.51 = 82,388,114.28 : x
  2. Step 2: Convert to fraction form
    138,136,151.12/190,609,797.51 = 82,388,114.28/x
  3. Step 3: Cross multiply
    138,136,151.12x = 190,609,797.51 × 82,388,114.28
  4. Step 4: Simplify right side
    138,136,151.12x = 15,703,981,780,141,538
  5. Step 5: Solve for x
    x = 15,703,981,780,141,538/138,136,151.12
  6. Step 6: Final answer
    x = 113,684,807.73

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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.