Home / 18,879,976.71-28,335,098.71-9,784,674.61

Finding the Fourth Proportional to 18,879,976.71, 28,335,098.71 and 9,784,674.61

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Solution

The fourth proportional to 18,879,976.71, 28,335,098.71 and 9,784,674.61 is: 14,684,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,976.71 : 28,335,098.71 = 9,784,674.61 : x
  2. Step 2: Convert to fraction form
    18,879,976.71/28,335,098.71 = 9,784,674.61/x
  3. Step 3: Cross multiply
    18,879,976.71x = 28,335,098.71 × 9,784,674.61
  4. Step 4: Simplify right side
    18,879,976.71x = 277,249,720,967,230.47
  5. Step 5: Solve for x
    x = 277,249,720,967,230.47/18,879,976.71
  6. Step 6: Final answer
    x = 14,684,855.03

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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.