Home / 3,422,521.80-5,127,561.90-2,788,000.20

Finding the Fourth Proportional to 3,422,521.80, 5,127,561.90 and 2,788,000.20

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Solution

The fourth proportional to 3,422,521.80, 5,127,561.90 and 2,788,000.20 is: 4,176,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422,521.80 : 5,127,561.90 = 2,788,000.20 : x
  2. Step 2: Convert to fraction form
    3,422,521.80/5,127,561.90 = 2,788,000.20/x
  3. Step 3: Cross multiply
    3,422,521.80x = 5,127,561.90 × 2,788,000.20
  4. Step 4: Simplify right side
    3,422,521.80x = 14,295,643,602,712.38
  5. Step 5: Solve for x
    x = 14,295,643,602,712.38/3,422,521.80
  6. Step 6: Final answer
    x = 4,176,932.81

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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.