Home / 81,813,091.44-112,901,941.08-45,143,652.72

Finding the Fourth Proportional to 81,813,091.44, 112,901,941.08 and 45,143,652.72

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Solution

The fourth proportional to 81,813,091.44, 112,901,941.08 and 45,143,652.72 is: 62,298,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,813,091.44 : 112,901,941.08 = 45,143,652.72 : x
  2. Step 2: Convert to fraction form
    81,813,091.44/112,901,941.08 = 45,143,652.72/x
  3. Step 3: Cross multiply
    81,813,091.44x = 112,901,941.08 × 45,143,652.72
  4. Step 4: Simplify right side
    81,813,091.44x = 5,096,806,019,529,422
  5. Step 5: Solve for x
    x = 5,096,806,019,529,422/81,813,091.44
  6. Step 6: Final answer
    x = 62,298,171.72

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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.