Home / 31,781,232.64-47,659,748.64-18,831,037.72

Finding the Fourth Proportional to 31,781,232.64, 47,659,748.64 and 18,831,037.72

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Solution

The fourth proportional to 31,781,232.64, 47,659,748.64 and 18,831,037.72 is: 28,239,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781,232.64 : 47,659,748.64 = 18,831,037.72 : x
  2. Step 2: Convert to fraction form
    31,781,232.64/47,659,748.64 = 18,831,037.72/x
  3. Step 3: Cross multiply
    31,781,232.64x = 47,659,748.64 × 18,831,037.72
  4. Step 4: Simplify right side
    31,781,232.64x = 897,482,524,365,558.62
  5. Step 5: Solve for x
    x = 897,482,524,365,558.62/31,781,232.64
  6. Step 6: Final answer
    x = 28,239,386.89

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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.