Home / 2,778,087.20-3,894,920.80-2,778,087.20

Finding the Fourth Proportional to 2,778,087.20, 3,894,920.80 and 2,778,087.20

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Solution

The fourth proportional to 2,778,087.20, 3,894,920.80 and 2,778,087.20 is: 3,894,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,087.20 : 3,894,920.80 = 2,778,087.20 : x
  2. Step 2: Convert to fraction form
    2,778,087.20/3,894,920.80 = 2,778,087.20/x
  3. Step 3: Cross multiply
    2,778,087.20x = 3,894,920.80 × 2,778,087.20
  4. Step 4: Simplify right side
    2,778,087.20x = 10,820,429,619,493.76
  5. Step 5: Solve for x
    x = 10,820,429,619,493.76/2,778,087.20
  6. Step 6: Final answer
    x = 3,894,920.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.