Home / 243,052,789.64-364,595,438.82-85,466,977.50

Finding the Fourth Proportional to 243,052,789.64, 364,595,438.82 and 85,466,977.50

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Solution

The fourth proportional to 243,052,789.64, 364,595,438.82 and 85,466,977.50 is: 128,206,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,052,789.64 : 364,595,438.82 = 85,466,977.50 : x
  2. Step 2: Convert to fraction form
    243,052,789.64/364,595,438.82 = 85,466,977.50/x
  3. Step 3: Cross multiply
    243,052,789.64x = 364,595,438.82 × 85,466,977.50
  4. Step 4: Simplify right side
    243,052,789.64x = 31,160,870,166,231,564
  5. Step 5: Solve for x
    x = 31,160,870,166,231,564/243,052,789.64
  6. Step 6: Final answer
    x = 128,206,181.93

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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.