Home / 8,579,186.95-12,868,769.56-2,189,439.45

Finding the Fourth Proportional to 8,579,186.95, 12,868,769.56 and 2,189,439.45

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Solution

The fourth proportional to 8,579,186.95, 12,868,769.56 and 2,189,439.45 is: 3,284,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,186.95 : 12,868,769.56 = 2,189,439.45 : x
  2. Step 2: Convert to fraction form
    8,579,186.95/12,868,769.56 = 2,189,439.45/x
  3. Step 3: Cross multiply
    8,579,186.95x = 12,868,769.56 × 2,189,439.45
  4. Step 4: Simplify right side
    8,579,186.95x = 28,175,391,672,332.09
  5. Step 5: Solve for x
    x = 28,175,391,672,332.09/8,579,186.95
  6. Step 6: Final answer
    x = 3,284,156.39

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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.