Home / 4,871,721.81-6,722,386.32-2,807,413.88

Finding the Fourth Proportional to 4,871,721.81, 6,722,386.32 and 2,807,413.88

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Solution

The fourth proportional to 4,871,721.81, 6,722,386.32 and 2,807,413.88 is: 3,873,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871,721.81 : 6,722,386.32 = 2,807,413.88 : x
  2. Step 2: Convert to fraction form
    4,871,721.81/6,722,386.32 = 2,807,413.88/x
  3. Step 3: Cross multiply
    4,871,721.81x = 6,722,386.32 × 2,807,413.88
  4. Step 4: Simplify right side
    4,871,721.81x = 18,872,520,676,219.42
  5. Step 5: Solve for x
    x = 18,872,520,676,219.42/4,871,721.81
  6. Step 6: Final answer
    x = 3,873,891.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.