Home / 386,451,503.60-579,677,255.40-309,923,999.60

Finding the Fourth Proportional to 386,451,503.60, 579,677,255.40 and 309,923,999.60

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Solution

The fourth proportional to 386,451,503.60, 579,677,255.40 and 309,923,999.60 is: 464,885,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,451,503.60 : 579,677,255.40 = 309,923,999.60 : x
  2. Step 2: Convert to fraction form
    386,451,503.60/579,677,255.40 = 309,923,999.60/x
  3. Step 3: Cross multiply
    386,451,503.60x = 579,677,255.40 × 309,923,999.60
  4. Step 4: Simplify right side
    386,451,503.60x = 179,655,893,470,718,720
  5. Step 5: Solve for x
    x = 179,655,893,470,718,720/386,451,503.60
  6. Step 6: Final answer
    x = 464,885,999.40

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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.