Home / 489,213,434.80-733,820,152.20-451,799,988.40

Finding the Fourth Proportional to 489,213,434.80, 733,820,152.20 and 451,799,988.40

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Solution

The fourth proportional to 489,213,434.80, 733,820,152.20 and 451,799,988.40 is: 677,699,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,213,434.80 : 733,820,152.20 = 451,799,988.40 : x
  2. Step 2: Convert to fraction form
    489,213,434.80/733,820,152.20 = 451,799,988.40/x
  3. Step 3: Cross multiply
    489,213,434.80x = 733,820,152.20 × 451,799,988.40
  4. Step 4: Simplify right side
    489,213,434.80x = 331,539,936,251,646,208
  5. Step 5: Solve for x
    x = 331,539,936,251,646,208/489,213,434.80
  6. Step 6: Final answer
    x = 677,699,982.60

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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.