Home / 489,212,708.80-733,819,063.20-451,799,262.40

Finding the Fourth Proportional to 489,212,708.80, 733,819,063.20 and 451,799,262.40

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Solution

The fourth proportional to 489,212,708.80, 733,819,063.20 and 451,799,262.40 is: 677,698,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,212,708.80 : 733,819,063.20 = 451,799,262.40 : x
  2. Step 2: Convert to fraction form
    489,212,708.80/733,819,063.20 = 451,799,262.40/x
  3. Step 3: Cross multiply
    489,212,708.80x = 733,819,063.20 × 451,799,262.40
  4. Step 4: Simplify right side
    489,212,708.80x = 331,538,911,488,819,008
  5. Step 5: Solve for x
    x = 331,538,911,488,819,008/489,212,708.80
  6. Step 6: Final answer
    x = 677,698,893.60

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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.