Home / 82,185,961.20-123,043,012.20-79,826,665.20

Finding the Fourth Proportional to 82,185,961.20, 123,043,012.20 and 79,826,665.20

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Solution

The fourth proportional to 82,185,961.20, 123,043,012.20 and 79,826,665.20 is: 119,510,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,185,961.20 : 123,043,012.20 = 79,826,665.20 : x
  2. Step 2: Convert to fraction form
    82,185,961.20/123,043,012.20 = 79,826,665.20/x
  3. Step 3: Cross multiply
    82,185,961.20x = 123,043,012.20 × 79,826,665.20
  4. Step 4: Simplify right side
    82,185,961.20x = 9,822,113,340,088,916
  5. Step 5: Solve for x
    x = 9,822,113,340,088,916/82,185,961.20
  6. Step 6: Final answer
    x = 119,510,840.98

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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.