Home / 10,890,640.70-16,335,961.05-7,307,459.90

Finding the Fourth Proportional to 10,890,640.70, 16,335,961.05 and 7,307,459.90

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Solution

The fourth proportional to 10,890,640.70, 16,335,961.05 and 7,307,459.90 is: 10,961,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,640.70 : 16,335,961.05 = 7,307,459.90 : x
  2. Step 2: Convert to fraction form
    10,890,640.70/16,335,961.05 = 7,307,459.90/x
  3. Step 3: Cross multiply
    10,890,640.70x = 16,335,961.05 × 7,307,459.90
  4. Step 4: Simplify right side
    10,890,640.70x = 119,374,380,300,836.91
  5. Step 5: Solve for x
    x = 119,374,380,300,836.91/10,890,640.70
  6. Step 6: Final answer
    x = 10,961,189.85

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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.