Home / 18,793,975.80-28,190,963.70-12,822,007.80

Finding the Fourth Proportional to 18,793,975.80, 28,190,963.70 and 12,822,007.80

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Solution

The fourth proportional to 18,793,975.80, 28,190,963.70 and 12,822,007.80 is: 19,233,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793,975.80 : 28,190,963.70 = 12,822,007.80 : x
  2. Step 2: Convert to fraction form
    18,793,975.80/28,190,963.70 = 12,822,007.80/x
  3. Step 3: Cross multiply
    18,793,975.80x = 28,190,963.70 × 12,822,007.80
  4. Step 4: Simplify right side
    18,793,975.80x = 361,464,756,450,916.88
  5. Step 5: Solve for x
    x = 361,464,756,450,916.88/18,793,975.80
  6. Step 6: Final answer
    x = 19,233,011.70

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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.