Home / 71,993,936.28-99,351,567.90-40,638,585.36

Finding the Fourth Proportional to 71,993,936.28, 99,351,567.90 and 40,638,585.36

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Solution

The fourth proportional to 71,993,936.28, 99,351,567.90 and 40,638,585.36 is: 56,081,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,993,936.28 : 99,351,567.90 = 40,638,585.36 : x
  2. Step 2: Convert to fraction form
    71,993,936.28/99,351,567.90 = 40,638,585.36/x
  3. Step 3: Cross multiply
    71,993,936.28x = 99,351,567.90 × 40,638,585.36
  4. Step 4: Simplify right side
    71,993,936.28x = 4,037,507,172,753,986
  5. Step 5: Solve for x
    x = 4,037,507,172,753,986/71,993,936.28
  6. Step 6: Final answer
    x = 56,081,211.58

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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.