Home / 930,790,500.75-1,284,499,750.82-513,117,765.63

Finding the Fourth Proportional to 930,790,500.75, 1,284,499,750.82 and 513,117,765.63

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Solution

The fourth proportional to 930,790,500.75, 1,284,499,750.82 and 513,117,765.63 is: 708,107,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,790,500.75 : 1,284,499,750.82 = 513,117,765.63 : x
  2. Step 2: Convert to fraction form
    930,790,500.75/1,284,499,750.82 = 513,117,765.63/x
  3. Step 3: Cross multiply
    930,790,500.75x = 1,284,499,750.82 × 513,117,765.63
  4. Step 4: Simplify right side
    930,790,500.75x = 659,099,642,090,484,608
  5. Step 5: Solve for x
    x = 659,099,642,090,484,608/930,790,500.75
  6. Step 6: Final answer
    x = 708,107,400.71

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.