Home / 112,291,213.60-168,436,820.40-31,512,181.60

Finding the Fourth Proportional to 112,291,213.60, 168,436,820.40 and 31,512,181.60

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Solution

The fourth proportional to 112,291,213.60, 168,436,820.40 and 31,512,181.60 is: 47,268,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,291,213.60 : 168,436,820.40 = 31,512,181.60 : x
  2. Step 2: Convert to fraction form
    112,291,213.60/168,436,820.40 = 31,512,181.60/x
  3. Step 3: Cross multiply
    112,291,213.60x = 168,436,820.40 × 31,512,181.60
  4. Step 4: Simplify right side
    112,291,213.60x = 5,307,811,672,571,385
  5. Step 5: Solve for x
    x = 5,307,811,672,571,385/112,291,213.60
  6. Step 6: Final answer
    x = 47,268,272.40

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1.5x scale

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.