Home / 521,522,969,968.80-782,284,454,953.20-370,018,919,383.20

Finding the Fourth Proportional to 521,522,969,968.80, 782,284,454,953.20 and 370,018,919,383.20

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Solution

The fourth proportional to 521,522,969,968.80, 782,284,454,953.20 and 370,018,919,383.20 is: 555,028,379,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,522,969,968.80 : 782,284,454,953.20 = 370,018,919,383.20 : x
  2. Step 2: Convert to fraction form
    521,522,969,968.80/782,284,454,953.20 = 370,018,919,383.20/x
  3. Step 3: Cross multiply
    521,522,969,968.80x = 782,284,454,953.20 × 370,018,919,383.20
  4. Step 4: Simplify right side
    521,522,969,968.80x = 289,460,048,672,058,639,384,576
  5. Step 5: Solve for x
    x = 289,460,048,672,058,639,384,576/521,522,969,968.80
  6. Step 6: Final answer
    x = 555,028,379,074.80

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Double scale
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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.