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Finding the Third Proportional to 208,154,641,771 and 280,849,485,322

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Solution

The third proportional to 208,154,641,771 and 280,849,485,322 is: 378,931,897,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,154,641,771 : 280,849,485,322 = 280,849,485,322 : x
  2. Step 2: Convert to fraction form
    208,154,641,771/280,849,485,322 = 280,849,485,322/x
  3. Step 3: Cross multiply
    208,154,641,771x = 280,849,485,322 × 280,849,485,322
  4. Step 4: Simplify right side
    208,154,641,771x = 78,876,433,405,632,286,031,872
  5. Step 5: Solve for x
    x = 78,876,433,405,632,286,031,872/208,154,641,771
  6. Step 6: Final answer
    x = 378,931,897,624.50

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.