Home / 18,763,939.71-28,164,065.39-9,055,387.11

Finding the Fourth Proportional to 18,763,939.71, 28,164,065.39 and 9,055,387.11

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Solution

The fourth proportional to 18,763,939.71, 28,164,065.39 and 9,055,387.11 is: 13,591,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763,939.71 : 28,164,065.39 = 9,055,387.11 : x
  2. Step 2: Convert to fraction form
    18,763,939.71/28,164,065.39 = 9,055,387.11/x
  3. Step 3: Cross multiply
    18,763,939.71x = 28,164,065.39 × 9,055,387.11
  4. Step 4: Simplify right side
    18,763,939.71x = 255,036,514,684,612.81
  5. Step 5: Solve for x
    x = 255,036,514,684,612.81/18,763,939.71
  6. Step 6: Final answer
    x = 13,591,842.58

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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.