Home / 2,145,803.70-3,218,705.55-1,909,413.30

Finding the Fourth Proportional to 2,145,803.70, 3,218,705.55 and 1,909,413.30

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Solution

The fourth proportional to 2,145,803.70, 3,218,705.55 and 1,909,413.30 is: 2,864,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,803.70 : 3,218,705.55 = 1,909,413.30 : x
  2. Step 2: Convert to fraction form
    2,145,803.70/3,218,705.55 = 1,909,413.30/x
  3. Step 3: Cross multiply
    2,145,803.70x = 3,218,705.55 × 1,909,413.30
  4. Step 4: Simplify right side
    2,145,803.70x = 6,145,839,185,953.82
  5. Step 5: Solve for x
    x = 6,145,839,185,953.82/2,145,803.70
  6. Step 6: Final answer
    x = 2,864,119.95

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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.