Home / 412,345,081.16-618,517,796.94-121,212,224.36

Finding the Fourth Proportional to 412,345,081.16, 618,517,796.94 and 121,212,224.36

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Solution

The fourth proportional to 412,345,081.16, 618,517,796.94 and 121,212,224.36 is: 181,818,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,345,081.16 : 618,517,796.94 = 121,212,224.36 : x
  2. Step 2: Convert to fraction form
    412,345,081.16/618,517,796.94 = 121,212,224.36/x
  3. Step 3: Cross multiply
    412,345,081.16x = 618,517,796.94 × 121,212,224.36
  4. Step 4: Simplify right side
    412,345,081.16x = 74,971,917,973,344,208
  5. Step 5: Solve for x
    x = 74,971,917,973,344,208/412,345,081.16
  6. Step 6: Final answer
    x = 181,818,388.04

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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.