Home / 3,939,853.80-5,909,780.70-2,670,810.60

Finding the Fourth Proportional to 3,939,853.80, 5,909,780.70 and 2,670,810.60

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Solution

The fourth proportional to 3,939,853.80, 5,909,780.70 and 2,670,810.60 is: 4,006,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,853.80 : 5,909,780.70 = 2,670,810.60 : x
  2. Step 2: Convert to fraction form
    3,939,853.80/5,909,780.70 = 2,670,810.60/x
  3. Step 3: Cross multiply
    3,939,853.80x = 5,909,780.70 × 2,670,810.60
  4. Step 4: Simplify right side
    3,939,853.80x = 15,783,904,937,235.42
  5. Step 5: Solve for x
    x = 15,783,904,937,235.42/3,939,853.80
  6. Step 6: Final answer
    x = 4,006,215.90

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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.