Home / 7,169,979.70-10,754,969.55-6,386,158.90

Finding the Fourth Proportional to 7,169,979.70, 10,754,969.55 and 6,386,158.90

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Solution

The fourth proportional to 7,169,979.70, 10,754,969.55 and 6,386,158.90 is: 9,579,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,979.70 : 10,754,969.55 = 6,386,158.90 : x
  2. Step 2: Convert to fraction form
    7,169,979.70/10,754,969.55 = 6,386,158.90/x
  3. Step 3: Cross multiply
    7,169,979.70x = 10,754,969.55 × 6,386,158.90
  4. Step 4: Simplify right side
    7,169,979.70x = 68,682,944,510,961.50
  5. Step 5: Solve for x
    x = 68,682,944,510,961.50/7,169,979.70
  6. Step 6: Final answer
    x = 9,579,238.35

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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.