Home / 18,486,409.77-27,732,138.12-7,701,188.40

Finding the Fourth Proportional to 18,486,409.77, 27,732,138.12 and 7,701,188.40

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Solution

The fourth proportional to 18,486,409.77, 27,732,138.12 and 7,701,188.40 is: 11,552,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486,409.77 : 27,732,138.12 = 7,701,188.40 : x
  2. Step 2: Convert to fraction form
    18,486,409.77/27,732,138.12 = 7,701,188.40/x
  3. Step 3: Cross multiply
    18,486,409.77x = 27,732,138.12 × 7,701,188.40
  4. Step 4: Simplify right side
    18,486,409.77x = 213,570,420,396,941.81
  5. Step 5: Solve for x
    x = 213,570,420,396,941.81/18,486,409.77
  6. Step 6: Final answer
    x = 11,552,833.84

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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.