Home / 257,472,002.80-386,208,004.20-255,083,215.60

Finding the Fourth Proportional to 257,472,002.80, 386,208,004.20 and 255,083,215.60

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Solution

The fourth proportional to 257,472,002.80, 386,208,004.20 and 255,083,215.60 is: 382,624,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,472,002.80 : 386,208,004.20 = 255,083,215.60 : x
  2. Step 2: Convert to fraction form
    257,472,002.80/386,208,004.20 = 255,083,215.60/x
  3. Step 3: Cross multiply
    257,472,002.80x = 386,208,004.20 × 255,083,215.60
  4. Step 4: Simplify right side
    257,472,002.80x = 98,515,179,601,794,304
  5. Step 5: Solve for x
    x = 98,515,179,601,794,304/257,472,002.80
  6. Step 6: Final answer
    x = 382,624,823.40

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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.