Home / 402,680,107.20-603,572,263.20-221,057,630.40

Finding the Fourth Proportional to 402,680,107.20, 603,572,263.20 and 221,057,630.40

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Solution

The fourth proportional to 402,680,107.20, 603,572,263.20 and 221,057,630.40 is: 331,340,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,680,107.20 : 603,572,263.20 = 221,057,630.40 : x
  2. Step 2: Convert to fraction form
    402,680,107.20/603,572,263.20 = 221,057,630.40/x
  3. Step 3: Cross multiply
    402,680,107.20x = 603,572,263.20 × 221,057,630.40
  4. Step 4: Simplify right side
    402,680,107.20x = 133,424,254,278,157,136
  5. Step 5: Solve for x
    x = 133,424,254,278,157,136/402,680,107.20
  6. Step 6: Final answer
    x = 331,340,565.11

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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.