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Finding the Third Proportional to 143,929,836 and 221,092,074

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Solution

The third proportional to 143,929,836 and 221,092,074 is: 339,621,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,929,836 : 221,092,074 = 221,092,074 : x
  2. Step 2: Convert to fraction form
    143,929,836/221,092,074 = 221,092,074/x
  3. Step 3: Cross multiply
    143,929,836x = 221,092,074 × 221,092,074
  4. Step 4: Simplify right side
    143,929,836x = 48,881,705,185,621,472
  5. Step 5: Solve for x
    x = 48,881,705,185,621,472/143,929,836
  6. Step 6: Final answer
    x = 339,621,766.72

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.