Home / 138,792,600.80-208,188,901.20-52,533,821.60

Finding the Fourth Proportional to 138,792,600.80, 208,188,901.20 and 52,533,821.60

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Solution

The fourth proportional to 138,792,600.80, 208,188,901.20 and 52,533,821.60 is: 78,800,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792,600.80 : 208,188,901.20 = 52,533,821.60 : x
  2. Step 2: Convert to fraction form
    138,792,600.80/208,188,901.20 = 52,533,821.60/x
  3. Step 3: Cross multiply
    138,792,600.80x = 208,188,901.20 × 52,533,821.60
  4. Step 4: Simplify right side
    138,792,600.80x = 10,936,958,594,740,826
  5. Step 5: Solve for x
    x = 10,936,958,594,740,826/138,792,600.80
  6. Step 6: Final answer
    x = 78,800,732.40

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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.