Home / 489,212,642.80-733,818,964.20-451,799,196.40

Finding the Fourth Proportional to 489,212,642.80, 733,818,964.20 and 451,799,196.40

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Solution

The fourth proportional to 489,212,642.80, 733,818,964.20 and 451,799,196.40 is: 677,698,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,212,642.80 : 733,818,964.20 = 451,799,196.40 : x
  2. Step 2: Convert to fraction form
    489,212,642.80/733,818,964.20 = 451,799,196.40/x
  3. Step 3: Cross multiply
    489,212,642.80x = 733,818,964.20 × 451,799,196.40
  4. Step 4: Simplify right side
    489,212,642.80x = 331,538,818,328,640,384
  5. Step 5: Solve for x
    x = 331,538,818,328,640,384/489,212,642.80
  6. Step 6: Final answer
    x = 677,698,794.60

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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.