Home / 3,120,590.40-4,680,885.60-2,112,820.80

Finding the Fourth Proportional to 3,120,590.40, 4,680,885.60 and 2,112,820.80

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Solution

The fourth proportional to 3,120,590.40, 4,680,885.60 and 2,112,820.80 is: 3,169,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,590.40 : 4,680,885.60 = 2,112,820.80 : x
  2. Step 2: Convert to fraction form
    3,120,590.40/4,680,885.60 = 2,112,820.80/x
  3. Step 3: Cross multiply
    3,120,590.40x = 4,680,885.60 × 2,112,820.80
  4. Step 4: Simplify right side
    3,120,590.40x = 9,889,872,458,100.48
  5. Step 5: Solve for x
    x = 9,889,872,458,100.48/3,120,590.40
  6. Step 6: Final answer
    x = 3,169,231.20

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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.