Home / 443,234,674.80-664,852,012.20-279,975,999.60

Finding the Fourth Proportional to 443,234,674.80, 664,852,012.20 and 279,975,999.60

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Solution

The fourth proportional to 443,234,674.80, 664,852,012.20 and 279,975,999.60 is: 419,963,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,234,674.80 : 664,852,012.20 = 279,975,999.60 : x
  2. Step 2: Convert to fraction form
    443,234,674.80/664,852,012.20 = 279,975,999.60/x
  3. Step 3: Cross multiply
    443,234,674.80x = 664,852,012.20 × 279,975,999.60
  4. Step 4: Simplify right side
    443,234,674.80x = 186,142,606,701,766,432
  5. Step 5: Solve for x
    x = 186,142,606,701,766,432/443,234,674.80
  6. Step 6: Final answer
    x = 419,963,999.40

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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.