Home / 839,808,664.80-1,259,712,997.20-477,011,608.80

Finding the Fourth Proportional to 839,808,664.80, 1,259,712,997.20 and 477,011,608.80

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Solution

The fourth proportional to 839,808,664.80, 1,259,712,997.20 and 477,011,608.80 is: 715,517,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,664.80 : 1,259,712,997.20 = 477,011,608.80 : x
  2. Step 2: Convert to fraction form
    839,808,664.80/1,259,712,997.20 = 477,011,608.80/x
  3. Step 3: Cross multiply
    839,808,664.80x = 1,259,712,997.20 × 477,011,608.80
  4. Step 4: Simplify right side
    839,808,664.80x = 600,897,723,420,641,920
  5. Step 5: Solve for x
    x = 600,897,723,420,641,920/839,808,664.80
  6. Step 6: Final answer
    x = 715,517,413.20

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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.