Home / 82,285,917.28-123,446,137.68-31,166,804.32

Finding the Fourth Proportional to 82,285,917.28, 123,446,137.68 and 31,166,804.32

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Solution

The fourth proportional to 82,285,917.28, 123,446,137.68 and 31,166,804.32 is: 46,756,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,285,917.28 : 123,446,137.68 = 31,166,804.32 : x
  2. Step 2: Convert to fraction form
    82,285,917.28/123,446,137.68 = 31,166,804.32/x
  3. Step 3: Cross multiply
    82,285,917.28x = 123,446,137.68 × 31,166,804.32
  4. Step 4: Simplify right side
    82,285,917.28x = 3,847,421,617,132,339
  5. Step 5: Solve for x
    x = 3,847,421,617,132,339/82,285,917.28
  6. Step 6: Final answer
    x = 46,756,744.58

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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.