Home / 521,520,783,037.20-782,281,174,555.80-270,472,306,165.20

Finding the Fourth Proportional to 521,520,783,037.20, 782,281,174,555.80 and 270,472,306,165.20

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Solution

The fourth proportional to 521,520,783,037.20, 782,281,174,555.80 and 270,472,306,165.20 is: 405,708,459,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,783,037.20 : 782,281,174,555.80 = 270,472,306,165.20 : x
  2. Step 2: Convert to fraction form
    521,520,783,037.20/782,281,174,555.80 = 270,472,306,165.20/x
  3. Step 3: Cross multiply
    521,520,783,037.20x = 782,281,174,555.80 × 270,472,306,165.20
  4. Step 4: Simplify right side
    521,520,783,037.20x = 211,585,393,351,728,627,187,712
  5. Step 5: Solve for x
    x = 211,585,393,351,728,627,187,712/521,520,783,037.20
  6. Step 6: Final answer
    x = 405,708,459,247.80

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Double scale
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Similar ratio
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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.