Home / 426,384,001.60-639,576,002.40-419,581,556.80

Finding the Fourth Proportional to 426,384,001.60, 639,576,002.40 and 419,581,556.80

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Solution

The fourth proportional to 426,384,001.60, 639,576,002.40 and 419,581,556.80 is: 629,372,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,001.60 : 639,576,002.40 = 419,581,556.80 : x
  2. Step 2: Convert to fraction form
    426,384,001.60/639,576,002.40 = 419,581,556.80/x
  3. Step 3: Cross multiply
    426,384,001.60x = 639,576,002.40 × 419,581,556.80
  4. Step 4: Simplify right side
    426,384,001.60x = 268,354,294,778,912,544
  5. Step 5: Solve for x
    x = 268,354,294,778,912,544/426,384,001.60
  6. Step 6: Final answer
    x = 629,372,335.20

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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.