Home / 120,203,998.43-180,246,292.47-38,312,220.83

Finding the Fourth Proportional to 120,203,998.43, 180,246,292.47 and 38,312,220.83

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Solution

The fourth proportional to 120,203,998.43, 180,246,292.47 and 38,312,220.83 is: 57,449,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,203,998.43 : 180,246,292.47 = 38,312,220.83 : x
  2. Step 2: Convert to fraction form
    120,203,998.43/180,246,292.47 = 38,312,220.83/x
  3. Step 3: Cross multiply
    120,203,998.43x = 180,246,292.47 × 38,312,220.83
  4. Step 4: Simplify right side
    120,203,998.43x = 6,905,635,759,998,175
  5. Step 5: Solve for x
    x = 6,905,635,759,998,175/120,203,998.43
  6. Step 6: Final answer
    x = 57,449,301.61

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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.