Home / 8,579,186.16-12,868,768.37-2,189,438.66

Finding the Fourth Proportional to 8,579,186.16, 12,868,768.37 and 2,189,438.66

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Solution

The fourth proportional to 8,579,186.16, 12,868,768.37 and 2,189,438.66 is: 3,284,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,186.16 : 12,868,768.37 = 2,189,438.66 : x
  2. Step 2: Convert to fraction form
    8,579,186.16/12,868,768.37 = 2,189,438.66/x
  3. Step 3: Cross multiply
    8,579,186.16x = 12,868,768.37 × 2,189,438.66
  4. Step 4: Simplify right side
    8,579,186.16x = 28,175,378,900,572.15
  5. Step 5: Solve for x
    x = 28,175,378,900,572.15/8,579,186.16
  6. Step 6: Final answer
    x = 3,284,155.21

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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.