Home / 263,275,280.10-394,912,920.15-198,226,901.70

Finding the Fourth Proportional to 263,275,280.10, 394,912,920.15 and 198,226,901.70

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Solution

The fourth proportional to 263,275,280.10, 394,912,920.15 and 198,226,901.70 is: 297,340,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,275,280.10 : 394,912,920.15 = 198,226,901.70 : x
  2. Step 2: Convert to fraction form
    263,275,280.10/394,912,920.15 = 198,226,901.70/x
  3. Step 3: Cross multiply
    263,275,280.10x = 394,912,920.15 × 198,226,901.70
  4. Step 4: Simplify right side
    263,275,280.10x = 78,282,364,602,633,984
  5. Step 5: Solve for x
    x = 78,282,364,602,633,984/263,275,280.10
  6. Step 6: Final answer
    x = 297,340,352.55

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1.5x scale

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.