Home / 426,059,834.80-639,089,752.20-339,966,392.80

Finding the Fourth Proportional to 426,059,834.80, 639,089,752.20 and 339,966,392.80

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Solution

The fourth proportional to 426,059,834.80, 639,089,752.20 and 339,966,392.80 is: 509,949,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,059,834.80 : 639,089,752.20 = 339,966,392.80 : x
  2. Step 2: Convert to fraction form
    426,059,834.80/639,089,752.20 = 339,966,392.80/x
  3. Step 3: Cross multiply
    426,059,834.80x = 639,089,752.20 × 339,966,392.80
  4. Step 4: Simplify right side
    426,059,834.80x = 217,269,037,730,879,872
  5. Step 5: Solve for x
    x = 217,269,037,730,879,872/426,059,834.80
  6. Step 6: Final answer
    x = 509,949,589.20

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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.