Home / 2,642,431.20-3,963,646.80-2,012,575.20

Finding the Fourth Proportional to 2,642,431.20, 3,963,646.80 and 2,012,575.20

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Solution

The fourth proportional to 2,642,431.20, 3,963,646.80 and 2,012,575.20 is: 3,018,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,431.20 : 3,963,646.80 = 2,012,575.20 : x
  2. Step 2: Convert to fraction form
    2,642,431.20/3,963,646.80 = 2,012,575.20/x
  3. Step 3: Cross multiply
    2,642,431.20x = 3,963,646.80 × 2,012,575.20
  4. Step 4: Simplify right side
    2,642,431.20x = 7,977,137,251,239.36
  5. Step 5: Solve for x
    x = 7,977,137,251,239.36/2,642,431.20
  6. Step 6: Final answer
    x = 3,018,862.80

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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.