Home / 472,560,220.80-708,840,331.20-407,936,995.20

Finding the Fourth Proportional to 472,560,220.80, 708,840,331.20 and 407,936,995.20

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Solution

The fourth proportional to 472,560,220.80, 708,840,331.20 and 407,936,995.20 is: 611,905,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,560,220.80 : 708,840,331.20 = 407,936,995.20 : x
  2. Step 2: Convert to fraction form
    472,560,220.80/708,840,331.20 = 407,936,995.20/x
  3. Step 3: Cross multiply
    472,560,220.80x = 708,840,331.20 × 407,936,995.20
  4. Step 4: Simplify right side
    472,560,220.80x = 289,162,194,786,300,800
  5. Step 5: Solve for x
    x = 289,162,194,786,300,800/472,560,220.80
  6. Step 6: Final answer
    x = 611,905,492.80

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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.