Home / 120,500,231.78-166,292,015.38-65,496,090.98

Finding the Fourth Proportional to 120,500,231.78, 166,292,015.38 and 65,496,090.98

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Solution

The fourth proportional to 120,500,231.78, 166,292,015.38 and 65,496,090.98 is: 90,385,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,500,231.78 : 166,292,015.38 = 65,496,090.98 : x
  2. Step 2: Convert to fraction form
    120,500,231.78/166,292,015.38 = 65,496,090.98/x
  3. Step 3: Cross multiply
    120,500,231.78x = 166,292,015.38 × 65,496,090.98
  4. Step 4: Simplify right side
    120,500,231.78x = 10,891,476,968,576,038
  5. Step 5: Solve for x
    x = 10,891,476,968,576,038/120,500,231.78
  6. Step 6: Final answer
    x = 90,385,527.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.