Home / 89,679,311.28-123,731,845.92-50,507,387.28

Finding the Fourth Proportional to 89,679,311.28, 123,731,845.92 and 50,507,387.28

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Solution

The fourth proportional to 89,679,311.28, 123,731,845.92 and 50,507,387.28 is: 69,685,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,679,311.28 : 123,731,845.92 = 50,507,387.28 : x
  2. Step 2: Convert to fraction form
    89,679,311.28/123,731,845.92 = 50,507,387.28/x
  3. Step 3: Cross multiply
    89,679,311.28x = 123,731,845.92 × 50,507,387.28
  4. Step 4: Simplify right side
    89,679,311.28x = 6,249,372,260,750,728
  5. Step 5: Solve for x
    x = 6,249,372,260,750,728/89,679,311.28
  6. Step 6: Final answer
    x = 69,685,774.47

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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.