Home / 3,902,131.80-5,853,197.70-1,657,978.20

Finding the Fourth Proportional to 3,902,131.80, 5,853,197.70 and 1,657,978.20

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Solution

The fourth proportional to 3,902,131.80, 5,853,197.70 and 1,657,978.20 is: 2,486,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902,131.80 : 5,853,197.70 = 1,657,978.20 : x
  2. Step 2: Convert to fraction form
    3,902,131.80/5,853,197.70 = 1,657,978.20/x
  3. Step 3: Cross multiply
    3,902,131.80x = 5,853,197.70 × 1,657,978.20
  4. Step 4: Simplify right side
    3,902,131.80x = 9,704,474,186,890.14
  5. Step 5: Solve for x
    x = 9,704,474,186,890.14/3,902,131.80
  6. Step 6: Final answer
    x = 2,486,967.30

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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.