Home / 138,784,735.56-191,609,990.40-89,311,066.08

Finding the Fourth Proportional to 138,784,735.56, 191,609,990.40 and 89,311,066.08

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Solution

The fourth proportional to 138,784,735.56, 191,609,990.40 and 89,311,066.08 is: 123,305,293.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,784,735.56 : 191,609,990.40 = 89,311,066.08 : x
  2. Step 2: Convert to fraction form
    138,784,735.56/191,609,990.40 = 89,311,066.08/x
  3. Step 3: Cross multiply
    138,784,735.56x = 191,609,990.40 × 89,311,066.08
  4. Step 4: Simplify right side
    138,784,735.56x = 17,112,892,514,202,566
  5. Step 5: Solve for x
    x = 17,112,892,514,202,566/138,784,735.56
  6. Step 6: Final answer
    x = 123,305,293.23

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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.