Home / 3,418,923.80-5,128,385.70-1,922,821.40

Finding the Fourth Proportional to 3,418,923.80, 5,128,385.70 and 1,922,821.40

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Solution

The fourth proportional to 3,418,923.80, 5,128,385.70 and 1,922,821.40 is: 2,884,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,923.80 : 5,128,385.70 = 1,922,821.40 : x
  2. Step 2: Convert to fraction form
    3,418,923.80/5,128,385.70 = 1,922,821.40/x
  3. Step 3: Cross multiply
    3,418,923.80x = 5,128,385.70 × 1,922,821.40
  4. Step 4: Simplify right side
    3,418,923.80x = 9,860,969,771,413.98
  5. Step 5: Solve for x
    x = 9,860,969,771,413.98/3,418,923.80
  6. Step 6: Final answer
    x = 2,884,232.10

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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.