Home / 72,691,611.18-100,445,059.35-55,257,689.22

Finding the Fourth Proportional to 72,691,611.18, 100,445,059.35 and 55,257,689.22

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Solution

The fourth proportional to 72,691,611.18, 100,445,059.35 and 55,257,689.22 is: 76,354,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,691,611.18 : 100,445,059.35 = 55,257,689.22 : x
  2. Step 2: Convert to fraction form
    72,691,611.18/100,445,059.35 = 55,257,689.22/x
  3. Step 3: Cross multiply
    72,691,611.18x = 100,445,059.35 × 55,257,689.22
  4. Step 4: Simplify right side
    72,691,611.18x = 5,550,361,873,246,755
  5. Step 5: Solve for x
    x = 5,550,361,873,246,755/72,691,611.18
  6. Step 6: Final answer
    x = 76,354,916.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.