Home / 489,212,646.80-733,818,970.20-451,799,200.40

Finding the Fourth Proportional to 489,212,646.80, 733,818,970.20 and 451,799,200.40

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Solution

The fourth proportional to 489,212,646.80, 733,818,970.20 and 451,799,200.40 is: 677,698,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,212,646.80 : 733,818,970.20 = 451,799,200.40 : x
  2. Step 2: Convert to fraction form
    489,212,646.80/733,818,970.20 = 451,799,200.40/x
  3. Step 3: Cross multiply
    489,212,646.80x = 733,818,970.20 × 451,799,200.40
  4. Step 4: Simplify right side
    489,212,646.80x = 331,538,823,974,711,424
  5. Step 5: Solve for x
    x = 331,538,823,974,711,424/489,212,646.80
  6. Step 6: Final answer
    x = 677,698,800.60

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1.5x scale

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.