Home / 431,390,247.80-647,085,371.70-293,640,740.60

Finding the Fourth Proportional to 431,390,247.80, 647,085,371.70 and 293,640,740.60

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Solution

The fourth proportional to 431,390,247.80, 647,085,371.70 and 293,640,740.60 is: 440,461,110.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,390,247.80 : 647,085,371.70 = 293,640,740.60 : x
  2. Step 2: Convert to fraction form
    431,390,247.80/647,085,371.70 = 293,640,740.60/x
  3. Step 3: Cross multiply
    431,390,247.80x = 647,085,371.70 × 293,640,740.60
  4. Step 4: Simplify right side
    431,390,247.80x = 190,010,627,777,414,304
  5. Step 5: Solve for x
    x = 190,010,627,777,414,304/431,390,247.80
  6. Step 6: Final answer
    x = 440,461,110.90

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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.