Home / 209,040,030.30-313,560,045.45-72,725,413.80

Finding the Fourth Proportional to 209,040,030.30, 313,560,045.45 and 72,725,413.80

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Solution

The fourth proportional to 209,040,030.30, 313,560,045.45 and 72,725,413.80 is: 109,088,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,040,030.30 : 313,560,045.45 = 72,725,413.80 : x
  2. Step 2: Convert to fraction form
    209,040,030.30/313,560,045.45 = 72,725,413.80/x
  3. Step 3: Cross multiply
    209,040,030.30x = 313,560,045.45 × 72,725,413.80
  4. Step 4: Simplify right side
    209,040,030.30x = 22,803,784,056,498,056
  5. Step 5: Solve for x
    x = 22,803,784,056,498,056/209,040,030.30
  6. Step 6: Final answer
    x = 109,088,120.70

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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.