Home / 402,680,106.20-603,572,261.70-221,057,629.40

Finding the Fourth Proportional to 402,680,106.20, 603,572,261.70 and 221,057,629.40

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Solution

The fourth proportional to 402,680,106.20, 603,572,261.70 and 221,057,629.40 is: 331,340,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,680,106.20 : 603,572,261.70 = 221,057,629.40 : x
  2. Step 2: Convert to fraction form
    402,680,106.20/603,572,261.70 = 221,057,629.40/x
  3. Step 3: Cross multiply
    402,680,106.20x = 603,572,261.70 × 221,057,629.40
  4. Step 4: Simplify right side
    402,680,106.20x = 133,424,253,342,998,432
  5. Step 5: Solve for x
    x = 133,424,253,342,998,432/402,680,106.20
  6. Step 6: Final answer
    x = 331,340,563.61

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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.