Home / 7,998,378.86-11,998,812.45-2,605,773.89

Finding the Fourth Proportional to 7,998,378.86, 11,998,812.45 and 2,605,773.89

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Solution

The fourth proportional to 7,998,378.86, 11,998,812.45 and 2,605,773.89 is: 3,909,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998,378.86 : 11,998,812.45 = 2,605,773.89 : x
  2. Step 2: Convert to fraction form
    7,998,378.86/11,998,812.45 = 2,605,773.89/x
  3. Step 3: Cross multiply
    7,998,378.86x = 11,998,812.45 × 2,605,773.89
  4. Step 4: Simplify right side
    7,998,378.86x = 31,266,192,193,216.93
  5. Step 5: Solve for x
    x = 31,266,192,193,216.93/7,998,378.86
  6. Step 6: Final answer
    x = 3,909,066.17

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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.