Home / 2,655,441.60-3,968,045.55-1,993,858.20

Finding the Fourth Proportional to 2,655,441.60, 3,968,045.55 and 1,993,858.20

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Solution

The fourth proportional to 2,655,441.60, 3,968,045.55 and 1,993,858.20 is: 2,979,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655,441.60 : 3,968,045.55 = 1,993,858.20 : x
  2. Step 2: Convert to fraction form
    2,655,441.60/3,968,045.55 = 1,993,858.20/x
  3. Step 3: Cross multiply
    2,655,441.60x = 3,968,045.55 × 1,993,858.20
  4. Step 4: Simplify right side
    2,655,441.60x = 7,911,720,157,841.01
  5. Step 5: Solve for x
    x = 7,911,720,157,841.01/2,655,441.60
  6. Step 6: Final answer
    x = 2,979,436.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.