Home / 13,012,076.80-17,963,011.20-8,663,737.60

Finding the Fourth Proportional to 13,012,076.80, 17,963,011.20 and 8,663,737.60

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Solution

The fourth proportional to 13,012,076.80, 17,963,011.20 and 8,663,737.60 is: 11,960,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,076.80 : 17,963,011.20 = 8,663,737.60 : x
  2. Step 2: Convert to fraction form
    13,012,076.80/17,963,011.20 = 8,663,737.60/x
  3. Step 3: Cross multiply
    13,012,076.80x = 17,963,011.20 × 8,663,737.60
  4. Step 4: Simplify right side
    13,012,076.80x = 155,626,815,542,661.09
  5. Step 5: Solve for x
    x = 155,626,815,542,661.09/13,012,076.80
  6. Step 6: Final answer
    x = 11,960,182.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.