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Finding the Fourth Proportional to 503,485,278.35, 755,227,917.53 and 503,485,278.35

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Solution

The fourth proportional to 503,485,278.35, 755,227,917.53 and 503,485,278.35 is: 755,227,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,485,278.35 : 755,227,917.53 = 503,485,278.35 : x
  2. Step 2: Convert to fraction form
    503,485,278.35/755,227,917.53 = 503,485,278.35/x
  3. Step 3: Cross multiply
    503,485,278.35x = 755,227,917.53 × 503,485,278.35
  4. Step 4: Simplify right side
    503,485,278.35x = 380,246,138,272,765,504
  5. Step 5: Solve for x
    x = 380,246,138,272,765,504/503,485,278.35
  6. Step 6: Final answer
    x = 755,227,917.53

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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.