Home / 109,012,309.80-163,607,694.30-108,162,004.20

Finding the Fourth Proportional to 109,012,309.80, 163,607,694.30 and 108,162,004.20

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Solution

The fourth proportional to 109,012,309.80, 163,607,694.30 and 108,162,004.20 is: 162,331,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,012,309.80 : 163,607,694.30 = 108,162,004.20 : x
  2. Step 2: Convert to fraction form
    109,012,309.80/163,607,694.30 = 108,162,004.20/x
  3. Step 3: Cross multiply
    109,012,309.80x = 163,607,694.30 × 108,162,004.20
  4. Step 4: Simplify right side
    109,012,309.80x = 17,696,136,118,028,918
  5. Step 5: Solve for x
    x = 17,696,136,118,028,918/109,012,309.80
  6. Step 6: Final answer
    x = 162,331,539.90

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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.