Home / 8,579,186.79-12,868,769.31-2,189,439.28

Finding the Fourth Proportional to 8,579,186.79, 12,868,769.31 and 2,189,439.28

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Solution

The fourth proportional to 8,579,186.79, 12,868,769.31 and 2,189,439.28 is: 3,284,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,186.79 : 12,868,769.31 = 2,189,439.28 : x
  2. Step 2: Convert to fraction form
    8,579,186.79/12,868,769.31 = 2,189,439.28/x
  3. Step 3: Cross multiply
    8,579,186.79x = 12,868,769.31 × 2,189,439.28
  4. Step 4: Simplify right side
    8,579,186.79x = 28,175,389,012,572.50
  5. Step 5: Solve for x
    x = 28,175,389,012,572.50/8,579,186.79
  6. Step 6: Final answer
    x = 3,284,156.14

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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.