Home / 3,557,780.20-5,336,670.30-2,139,437.80

Finding the Fourth Proportional to 3,557,780.20, 5,336,670.30 and 2,139,437.80

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Solution

The fourth proportional to 3,557,780.20, 5,336,670.30 and 2,139,437.80 is: 3,209,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557,780.20 : 5,336,670.30 = 2,139,437.80 : x
  2. Step 2: Convert to fraction form
    3,557,780.20/5,336,670.30 = 2,139,437.80/x
  3. Step 3: Cross multiply
    3,557,780.20x = 5,336,670.30 × 2,139,437.80
  4. Step 4: Simplify right side
    3,557,780.20x = 11,417,474,165,957.34
  5. Step 5: Solve for x
    x = 11,417,474,165,957.34/3,557,780.20
  6. Step 6: Final answer
    x = 3,209,156.70

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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.