Home / 199,318,839.02-299,130,859.20-90,220,625.60

Finding the Fourth Proportional to 199,318,839.02, 299,130,859.20 and 90,220,625.60

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Solution

The fourth proportional to 199,318,839.02, 299,130,859.20 and 90,220,625.60 is: 135,400,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,318,839.02 : 299,130,859.20 = 90,220,625.60 : x
  2. Step 2: Convert to fraction form
    199,318,839.02/299,130,859.20 = 90,220,625.60/x
  3. Step 3: Cross multiply
    199,318,839.02x = 299,130,859.20 × 90,220,625.60
  4. Step 4: Simplify right side
    199,318,839.02x = 26,987,773,251,793,860
  5. Step 5: Solve for x
    x = 26,987,773,251,793,860/199,318,839.02
  6. Step 6: Final answer
    x = 135,400,012.29

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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.