Home / 443,235,280.05-664,852,920.08-259,569,270.45

Finding the Fourth Proportional to 443,235,280.05, 664,852,920.08 and 259,569,270.45

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Solution

The fourth proportional to 443,235,280.05, 664,852,920.08 and 259,569,270.45 is: 389,353,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,235,280.05 : 664,852,920.08 = 259,569,270.45 : x
  2. Step 2: Convert to fraction form
    443,235,280.05/664,852,920.08 = 259,569,270.45/x
  3. Step 3: Cross multiply
    443,235,280.05x = 664,852,920.08 × 259,569,270.45
  4. Step 4: Simplify right side
    443,235,280.05x = 172,575,387,420,419,904
  5. Step 5: Solve for x
    x = 172,575,387,420,419,904/443,235,280.05
  6. Step 6: Final answer
    x = 389,353,905.68

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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.