Home / 100,740,429.30-150,858,701.55-80,585,037.30

Finding the Fourth Proportional to 100,740,429.30, 150,858,701.55 and 80,585,037.30

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Solution

The fourth proportional to 100,740,429.30, 150,858,701.55 and 80,585,037.30 is: 120,676,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,740,429.30 : 150,858,701.55 = 80,585,037.30 : x
  2. Step 2: Convert to fraction form
    100,740,429.30/150,858,701.55 = 80,585,037.30/x
  3. Step 3: Cross multiply
    100,740,429.30x = 150,858,701.55 × 80,585,037.30
  4. Step 4: Simplify right side
    100,740,429.30x = 12,156,954,091,436,318
  5. Step 5: Solve for x
    x = 12,156,954,091,436,318/100,740,429.30
  6. Step 6: Final answer
    x = 120,676,020.30

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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.