Home / 3,120,761.70-4,681,142.55-2,175,200.10

Finding the Fourth Proportional to 3,120,761.70, 4,681,142.55 and 2,175,200.10

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Solution

The fourth proportional to 3,120,761.70, 4,681,142.55 and 2,175,200.10 is: 3,262,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,761.70 : 4,681,142.55 = 2,175,200.10 : x
  2. Step 2: Convert to fraction form
    3,120,761.70/4,681,142.55 = 2,175,200.10/x
  3. Step 3: Cross multiply
    3,120,761.70x = 4,681,142.55 × 2,175,200.10
  4. Step 4: Simplify right side
    3,120,761.70x = 10,182,421,742,874.26
  5. Step 5: Solve for x
    x = 10,182,421,742,874.26/3,120,761.70
  6. Step 6: Final answer
    x = 3,262,800.15

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Double scale
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Similar ratio
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1.5x scale

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.