Home / 521,520,776,677.20-782,281,165,015.80-186,513,975,166.80

Finding the Fourth Proportional to 521,520,776,677.20, 782,281,165,015.80 and 186,513,975,166.80

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Solution

The fourth proportional to 521,520,776,677.20, 782,281,165,015.80 and 186,513,975,166.80 is: 279,770,962,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,776,677.20 : 782,281,165,015.80 = 186,513,975,166.80 : x
  2. Step 2: Convert to fraction form
    521,520,776,677.20/782,281,165,015.80 = 186,513,975,166.80/x
  3. Step 3: Cross multiply
    521,520,776,677.20x = 782,281,165,015.80 × 186,513,975,166.80
  4. Step 4: Simplify right side
    521,520,776,677.20x = 145,906,369,785,212,285,485,056
  5. Step 5: Solve for x
    x = 145,906,369,785,212,285,485,056/521,520,776,677.20
  6. Step 6: Final answer
    x = 279,770,962,750.20

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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.