Home / 426,048,584.80-639,072,877.20-339,955,142.80

Finding the Fourth Proportional to 426,048,584.80, 639,072,877.20 and 339,955,142.80

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Solution

The fourth proportional to 426,048,584.80, 639,072,877.20 and 339,955,142.80 is: 509,932,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,048,584.80 : 639,072,877.20 = 339,955,142.80 : x
  2. Step 2: Convert to fraction form
    426,048,584.80/639,072,877.20 = 339,955,142.80/x
  3. Step 3: Cross multiply
    426,048,584.80x = 639,072,877.20 × 339,955,142.80
  4. Step 4: Simplify right side
    426,048,584.80x = 217,256,111,228,132,896
  5. Step 5: Solve for x
    x = 217,256,111,228,132,896/426,048,584.80
  6. Step 6: Final answer
    x = 509,932,714.20

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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.