Home / 18,486,411.78-27,732,141.12-7,701,190.40

Finding the Fourth Proportional to 18,486,411.78, 27,732,141.12 and 7,701,190.40

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Solution

The fourth proportional to 18,486,411.78, 27,732,141.12 and 7,701,190.40 is: 11,552,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486,411.78 : 27,732,141.12 = 7,701,190.40 : x
  2. Step 2: Convert to fraction form
    18,486,411.78/27,732,141.12 = 7,701,190.40/x
  3. Step 3: Cross multiply
    18,486,411.78x = 27,732,141.12 × 7,701,190.40
  4. Step 4: Simplify right side
    18,486,411.78x = 213,570,498,964,789.28
  5. Step 5: Solve for x
    x = 213,570,498,964,789.28/18,486,411.78
  6. Step 6: Final answer
    x = 11,552,836.84

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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.