Home / 79,725,205.80-119,587,808.70-68,246,080.20

Finding the Fourth Proportional to 79,725,205.80, 119,587,808.70 and 68,246,080.20

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Solution

The fourth proportional to 79,725,205.80, 119,587,808.70 and 68,246,080.20 is: 102,369,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,725,205.80 : 119,587,808.70 = 68,246,080.20 : x
  2. Step 2: Convert to fraction form
    79,725,205.80/119,587,808.70 = 68,246,080.20/x
  3. Step 3: Cross multiply
    79,725,205.80x = 119,587,808.70 × 68,246,080.20
  4. Step 4: Simplify right side
    79,725,205.80x = 8,161,399,183,482,458
  5. Step 5: Solve for x
    x = 8,161,399,183,482,458/79,725,205.80
  6. Step 6: Final answer
    x = 102,369,120.30

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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.