Home / 521,520,778,942.80-782,281,168,414.20-149,290,999,486.80

Finding the Fourth Proportional to 521,520,778,942.80, 782,281,168,414.20 and 149,290,999,486.80

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Solution

The fourth proportional to 521,520,778,942.80, 782,281,168,414.20 and 149,290,999,486.80 is: 223,936,499,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,778,942.80 : 782,281,168,414.20 = 149,290,999,486.80 : x
  2. Step 2: Convert to fraction form
    521,520,778,942.80/782,281,168,414.20 = 149,290,999,486.80/x
  3. Step 3: Cross multiply
    521,520,778,942.80x = 782,281,168,414.20 × 149,290,999,486.80
  4. Step 4: Simplify right side
    521,520,778,942.80x = 116,787,537,512,257,623,687,168
  5. Step 5: Solve for x
    x = 116,787,537,512,257,623,687,168/521,520,778,942.80
  6. Step 6: Final answer
    x = 223,936,499,230.20

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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.