Home / 112,291,221.60-168,436,832.40-31,512,189.60

Finding the Fourth Proportional to 112,291,221.60, 168,436,832.40 and 31,512,189.60

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Solution

The fourth proportional to 112,291,221.60, 168,436,832.40 and 31,512,189.60 is: 47,268,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,291,221.60 : 168,436,832.40 = 31,512,189.60 : x
  2. Step 2: Convert to fraction form
    112,291,221.60/168,436,832.40 = 31,512,189.60/x
  3. Step 3: Cross multiply
    112,291,221.60x = 168,436,832.40 × 31,512,189.60
  4. Step 4: Simplify right side
    112,291,221.60x = 5,307,813,398,212,223
  5. Step 5: Solve for x
    x = 5,307,813,398,212,223/112,291,221.60
  6. Step 6: Final answer
    x = 47,268,284.40

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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.