Home / 3,118,178.40-4,681,204.20-1,680,007.20

Finding the Fourth Proportional to 3,118,178.40, 4,681,204.20 and 1,680,007.20

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Solution

The fourth proportional to 3,118,178.40, 4,681,204.20 and 1,680,007.20 is: 2,522,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,178.40 : 4,681,204.20 = 1,680,007.20 : x
  2. Step 2: Convert to fraction form
    3,118,178.40/4,681,204.20 = 1,680,007.20/x
  3. Step 3: Cross multiply
    3,118,178.40x = 4,681,204.20 × 1,680,007.20
  4. Step 4: Simplify right side
    3,118,178.40x = 7,864,456,760,670.24
  5. Step 5: Solve for x
    x = 7,864,456,760,670.24/3,118,178.40
  6. Step 6: Final answer
    x = 2,522,131.76

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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.