Home / 3,121,388.64-4,681,742.40-2,116,962.72

Finding the Fourth Proportional to 3,121,388.64, 4,681,742.40 and 2,116,962.72

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Solution

The fourth proportional to 3,121,388.64, 4,681,742.40 and 2,116,962.72 is: 3,175,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,388.64 : 4,681,742.40 = 2,116,962.72 : x
  2. Step 2: Convert to fraction form
    3,121,388.64/4,681,742.40 = 2,116,962.72/x
  3. Step 3: Cross multiply
    3,121,388.64x = 4,681,742.40 × 2,116,962.72
  4. Step 4: Simplify right side
    3,121,388.64x = 9,911,074,125,443.33
  5. Step 5: Solve for x
    x = 9,911,074,125,443.33/3,121,388.64
  6. Step 6: Final answer
    x = 3,175,213.11

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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.