Home / 431,569,425.80-647,354,138.70-293,819,918.60

Finding the Fourth Proportional to 431,569,425.80, 647,354,138.70 and 293,819,918.60

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Solution

The fourth proportional to 431,569,425.80, 647,354,138.70 and 293,819,918.60 is: 440,729,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,425.80 : 647,354,138.70 = 293,819,918.60 : x
  2. Step 2: Convert to fraction form
    431,569,425.80/647,354,138.70 = 293,819,918.60/x
  3. Step 3: Cross multiply
    431,569,425.80x = 647,354,138.70 × 293,819,918.60
  4. Step 4: Simplify right side
    431,569,425.80x = 190,205,540,338,207,136
  5. Step 5: Solve for x
    x = 190,205,540,338,207,136/431,569,425.80
  6. Step 6: Final answer
    x = 440,729,877.90

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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.