Home / 521,520,776,767.20-782,281,165,150.80-186,513,975,256.80

Finding the Fourth Proportional to 521,520,776,767.20, 782,281,165,150.80 and 186,513,975,256.80

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Solution

The fourth proportional to 521,520,776,767.20, 782,281,165,150.80 and 186,513,975,256.80 is: 279,770,962,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,776,767.20 : 782,281,165,150.80 = 186,513,975,256.80 : x
  2. Step 2: Convert to fraction form
    521,520,776,767.20/782,281,165,150.80 = 186,513,975,256.80/x
  3. Step 3: Cross multiply
    521,520,776,767.20x = 782,281,165,150.80 × 186,513,975,256.80
  4. Step 4: Simplify right side
    521,520,776,767.20x = 145,906,369,880,796,983,984,128
  5. Step 5: Solve for x
    x = 145,906,369,880,796,983,984,128/521,520,776,767.20
  6. Step 6: Final answer
    x = 279,770,962,885.20

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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.