Home / 137,271,990.79-205,885,261.20-45,156,879.39

Finding the Fourth Proportional to 137,271,990.79, 205,885,261.20 and 45,156,879.39

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Solution

The fourth proportional to 137,271,990.79, 205,885,261.20 and 45,156,879.39 is: 67,727,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,271,990.79 : 205,885,261.20 = 45,156,879.39 : x
  2. Step 2: Convert to fraction form
    137,271,990.79/205,885,261.20 = 45,156,879.39/x
  3. Step 3: Cross multiply
    137,271,990.79x = 205,885,261.20 × 45,156,879.39
  4. Step 4: Simplify right side
    137,271,990.79x = 9,297,135,907,716,570
  5. Step 5: Solve for x
    x = 9,297,135,907,716,570/137,271,990.79
  6. Step 6: Final answer
    x = 67,727,843.49

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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.