Home / 72,393,627.68-108,529,217.64-31,422,272.48

Finding the Fourth Proportional to 72,393,627.68, 108,529,217.64 and 31,422,272.48

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Solution

The fourth proportional to 72,393,627.68, 108,529,217.64 and 31,422,272.48 is: 47,106,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,393,627.68 : 108,529,217.64 = 31,422,272.48 : x
  2. Step 2: Convert to fraction form
    72,393,627.68/108,529,217.64 = 31,422,272.48/x
  3. Step 3: Cross multiply
    72,393,627.68x = 108,529,217.64 × 31,422,272.48
  4. Step 4: Simplify right side
    72,393,627.68x = 3,410,234,648,725,302.50
  5. Step 5: Solve for x
    x = 3,410,234,648,725,302.50/72,393,627.68
  6. Step 6: Final answer
    x = 47,106,834.65

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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.