Home / 5,518,113.19-8,278,415.39-1,680,278.78

Finding the Fourth Proportional to 5,518,113.19, 8,278,415.39 and 1,680,278.78

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Solution

The fourth proportional to 5,518,113.19, 8,278,415.39 and 1,680,278.78 is: 2,520,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518,113.19 : 8,278,415.39 = 1,680,278.78 : x
  2. Step 2: Convert to fraction form
    5,518,113.19/8,278,415.39 = 1,680,278.78/x
  3. Step 3: Cross multiply
    5,518,113.19x = 8,278,415.39 × 1,680,278.78
  4. Step 4: Simplify right side
    5,518,113.19x = 13,910,045,736,739.16
  5. Step 5: Solve for x
    x = 13,910,045,736,739.16/5,518,113.19
  6. Step 6: Final answer
    x = 2,520,797.47

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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.