Home / 866,052,511.80-1,299,078,767.70-219,820,255.80

Finding the Fourth Proportional to 866,052,511.80, 1,299,078,767.70 and 219,820,255.80

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Solution

The fourth proportional to 866,052,511.80, 1,299,078,767.70 and 219,820,255.80 is: 329,730,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,052,511.80 : 1,299,078,767.70 = 219,820,255.80 : x
  2. Step 2: Convert to fraction form
    866,052,511.80/1,299,078,767.70 = 219,820,255.80/x
  3. Step 3: Cross multiply
    866,052,511.80x = 1,299,078,767.70 × 219,820,255.80
  4. Step 4: Simplify right side
    866,052,511.80x = 285,563,827,020,162,816
  5. Step 5: Solve for x
    x = 285,563,827,020,162,816/866,052,511.80
  6. Step 6: Final answer
    x = 329,730,383.70

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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.