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Finding the Third Proportional to 136,887,388.88 and 208,778,890.50

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Solution

The third proportional to 136,887,388.88 and 208,778,890.50 is: 318,426,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,887,388.88 : 208,778,890.50 = 208,778,890.50 : x
  2. Step 2: Convert to fraction form
    136,887,388.88/208,778,890.50 = 208,778,890.50/x
  3. Step 3: Cross multiply
    136,887,388.88x = 208,778,890.50 × 208,778,890.50
  4. Step 4: Simplify right side
    136,887,388.88x = 43,588,625,118,410,992
  5. Step 5: Solve for x
    x = 43,588,625,118,410,992/136,887,388.88
  6. Step 6: Final answer
    x = 318,426,887.07

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.