Home / 2,578,711.20-3,868,066.80-2,011,840.80

Finding the Fourth Proportional to 2,578,711.20, 3,868,066.80 and 2,011,840.80

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Solution

The fourth proportional to 2,578,711.20, 3,868,066.80 and 2,011,840.80 is: 3,017,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,711.20 : 3,868,066.80 = 2,011,840.80 : x
  2. Step 2: Convert to fraction form
    2,578,711.20/3,868,066.80 = 2,011,840.80/x
  3. Step 3: Cross multiply
    2,578,711.20x = 3,868,066.80 × 2,011,840.80
  4. Step 4: Simplify right side
    2,578,711.20x = 7,781,934,605,365.44
  5. Step 5: Solve for x
    x = 7,781,934,605,365.44/2,578,711.20
  6. Step 6: Final answer
    x = 3,017,761.20

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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.