Home / 12,882,995.70-17,778,755.03-7,082,021.94

Finding the Fourth Proportional to 12,882,995.70, 17,778,755.03 and 7,082,021.94

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Solution

The fourth proportional to 12,882,995.70, 17,778,755.03 and 7,082,021.94 is: 9,773,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882,995.70 : 17,778,755.03 = 7,082,021.94 : x
  2. Step 2: Convert to fraction form
    12,882,995.70/17,778,755.03 = 7,082,021.94/x
  3. Step 3: Cross multiply
    12,882,995.70x = 17,778,755.03 × 7,082,021.94
  4. Step 4: Simplify right side
    12,882,995.70x = 125,909,533,188,345.38
  5. Step 5: Solve for x
    x = 125,909,533,188,345.38/12,882,995.70
  6. Step 6: Final answer
    x = 9,773,311.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.