Home / 159,217,921.33-238,917,891.26-86,440,619.32

Finding the Fourth Proportional to 159,217,921.33, 238,917,891.26 and 86,440,619.32

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Solution

The fourth proportional to 159,217,921.33, 238,917,891.26 and 86,440,619.32 is: 129,710,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,217,921.33 : 238,917,891.26 = 86,440,619.32 : x
  2. Step 2: Convert to fraction form
    159,217,921.33/238,917,891.26 = 86,440,619.32/x
  3. Step 3: Cross multiply
    159,217,921.33x = 238,917,891.26 × 86,440,619.32
  4. Step 4: Simplify right side
    159,217,921.33x = 20,652,210,487,142,812
  5. Step 5: Solve for x
    x = 20,652,210,487,142,812/159,217,921.33
  6. Step 6: Final answer
    x = 129,710,338.60

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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.