Home / 145,644,820.80-218,467,231.20-131,032,161.60

Finding the Fourth Proportional to 145,644,820.80, 218,467,231.20 and 131,032,161.60

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Solution

The fourth proportional to 145,644,820.80, 218,467,231.20 and 131,032,161.60 is: 196,548,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,644,820.80 : 218,467,231.20 = 131,032,161.60 : x
  2. Step 2: Convert to fraction form
    145,644,820.80/218,467,231.20 = 131,032,161.60/x
  3. Step 3: Cross multiply
    145,644,820.80x = 218,467,231.20 × 131,032,161.60
  4. Step 4: Simplify right side
    145,644,820.80x = 28,626,233,542,902,960
  5. Step 5: Solve for x
    x = 28,626,233,542,902,960/145,644,820.80
  6. Step 6: Final answer
    x = 196,548,242.40

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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.