Home / 300,010,920.96-452,265,025.14-280,012,132.80

Finding the Fourth Proportional to 300,010,920.96, 452,265,025.14 and 280,012,132.80

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Solution

The fourth proportional to 300,010,920.96, 452,265,025.14 and 280,012,132.80 is: 422,116,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,010,920.96 : 452,265,025.14 = 280,012,132.80 : x
  2. Step 2: Convert to fraction form
    300,010,920.96/452,265,025.14 = 280,012,132.80/x
  3. Step 3: Cross multiply
    300,010,920.96x = 452,265,025.14 × 280,012,132.80
  4. Step 4: Simplify right side
    300,010,920.96x = 126,639,694,280,297,024
  5. Step 5: Solve for x
    x = 126,639,694,280,297,024/300,010,920.96
  6. Step 6: Final answer
    x = 422,116,947.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.