Home / 109,051,993.20-163,577,989.80-84,658,851.30

Finding the Fourth Proportional to 109,051,993.20, 163,577,989.80 and 84,658,851.30

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Solution

The fourth proportional to 109,051,993.20, 163,577,989.80 and 84,658,851.30 is: 126,988,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,051,993.20 : 163,577,989.80 = 84,658,851.30 : x
  2. Step 2: Convert to fraction form
    109,051,993.20/163,577,989.80 = 84,658,851.30/x
  3. Step 3: Cross multiply
    109,051,993.20x = 163,577,989.80 × 84,658,851.30
  4. Step 4: Simplify right side
    109,051,993.20x = 13,848,324,714,431,118
  5. Step 5: Solve for x
    x = 13,848,324,714,431,118/109,051,993.20
  6. Step 6: Final answer
    x = 126,988,276.95

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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.