Home / 431,390,254.80-647,085,382.20-293,640,747.60

Finding the Fourth Proportional to 431,390,254.80, 647,085,382.20 and 293,640,747.60

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Solution

The fourth proportional to 431,390,254.80, 647,085,382.20 and 293,640,747.60 is: 440,461,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,390,254.80 : 647,085,382.20 = 293,640,747.60 : x
  2. Step 2: Convert to fraction form
    431,390,254.80/647,085,382.20 = 293,640,747.60/x
  3. Step 3: Cross multiply
    431,390,254.80x = 647,085,382.20 × 293,640,747.60
  4. Step 4: Simplify right side
    431,390,254.80x = 190,010,635,390,239,776
  5. Step 5: Solve for x
    x = 190,010,635,390,239,776/431,390,254.80
  6. Step 6: Final answer
    x = 440,461,121.40

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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.