Home / 84,628,942.20-126,943,413.30-79,527,108.60

Finding the Fourth Proportional to 84,628,942.20, 126,943,413.30 and 79,527,108.60

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Solution

The fourth proportional to 84,628,942.20, 126,943,413.30 and 79,527,108.60 is: 119,290,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,628,942.20 : 126,943,413.30 = 79,527,108.60 : x
  2. Step 2: Convert to fraction form
    84,628,942.20/126,943,413.30 = 79,527,108.60/x
  3. Step 3: Cross multiply
    84,628,942.20x = 126,943,413.30 × 79,527,108.60
  4. Step 4: Simplify right side
    84,628,942.20x = 10,095,442,615,563,784
  5. Step 5: Solve for x
    x = 10,095,442,615,563,784/84,628,942.20
  6. Step 6: Final answer
    x = 119,290,662.90

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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.