Home / 559,972,813.80-839,959,220.70-443,071,540.20

Finding the Fourth Proportional to 559,972,813.80, 839,959,220.70 and 443,071,540.20

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Solution

The fourth proportional to 559,972,813.80, 839,959,220.70 and 443,071,540.20 is: 664,607,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,972,813.80 : 839,959,220.70 = 443,071,540.20 : x
  2. Step 2: Convert to fraction form
    559,972,813.80/839,959,220.70 = 443,071,540.20/x
  3. Step 3: Cross multiply
    559,972,813.80x = 839,959,220.70 × 443,071,540.20
  4. Step 4: Simplify right side
    559,972,813.80x = 372,162,025,620,740,736
  5. Step 5: Solve for x
    x = 372,162,025,620,740,736/559,972,813.80
  6. Step 6: Final answer
    x = 664,607,310.30

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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.