Home / 138,792,604.80-208,188,907.20-52,533,825.60

Finding the Fourth Proportional to 138,792,604.80, 208,188,907.20 and 52,533,825.60

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Solution

The fourth proportional to 138,792,604.80, 208,188,907.20 and 52,533,825.60 is: 78,800,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792,604.80 : 208,188,907.20 = 52,533,825.60 : x
  2. Step 2: Convert to fraction form
    138,792,604.80/208,188,907.20 = 52,533,825.60/x
  3. Step 3: Cross multiply
    138,792,604.80x = 208,188,907.20 × 52,533,825.60
  4. Step 4: Simplify right side
    138,792,604.80x = 10,936,959,742,699,384
  5. Step 5: Solve for x
    x = 10,936,959,742,699,384/138,792,604.80
  6. Step 6: Final answer
    x = 78,800,738.40

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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.