Home / 7,198,106.40-10,776,164.40-6,442,279.20

Finding the Fourth Proportional to 7,198,106.40, 10,776,164.40 and 6,442,279.20

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Solution

The fourth proportional to 7,198,106.40, 10,776,164.40 and 6,442,279.20 is: 9,644,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198,106.40 : 10,776,164.40 = 6,442,279.20 : x
  2. Step 2: Convert to fraction form
    7,198,106.40/10,776,164.40 = 6,442,279.20/x
  3. Step 3: Cross multiply
    7,198,106.40x = 10,776,164.40 × 6,442,279.20
  4. Step 4: Simplify right side
    7,198,106.40x = 69,423,059,769,900.48
  5. Step 5: Solve for x
    x = 69,423,059,769,900.48/7,198,106.40
  6. Step 6: Final answer
    x = 9,644,628.17

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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.