Home / 10,657,640.88-15,990,475.68-6,400,776.96

Finding the Fourth Proportional to 10,657,640.88, 15,990,475.68 and 6,400,776.96

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Solution

The fourth proportional to 10,657,640.88, 15,990,475.68 and 6,400,776.96 is: 9,603,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657,640.88 : 15,990,475.68 = 6,400,776.96 : x
  2. Step 2: Convert to fraction form
    10,657,640.88/15,990,475.68 = 6,400,776.96/x
  3. Step 3: Cross multiply
    10,657,640.88x = 15,990,475.68 × 6,400,776.96
  4. Step 4: Simplify right side
    10,657,640.88x = 102,351,468,311,984.33
  5. Step 5: Solve for x
    x = 102,351,468,311,984.33/10,657,640.88
  6. Step 6: Final answer
    x = 9,603,576.39

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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.