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Finding the Third Proportional to 78,211,336 and 118,323,644

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Solution

The third proportional to 78,211,336 and 118,323,644 is: 179,008,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,211,336 : 118,323,644 = 118,323,644 : x
  2. Step 2: Convert to fraction form
    78,211,336/118,323,644 = 118,323,644/x
  3. Step 3: Cross multiply
    78,211,336x = 118,323,644 × 118,323,644
  4. Step 4: Simplify right side
    78,211,336x = 14,000,484,729,438,736
  5. Step 5: Solve for x
    x = 14,000,484,729,438,736/78,211,336
  6. Step 6: Final answer
    x = 179,008,382.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.