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Finding the Third Proportional to 143,345,964 and 221,355,810

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Solution

The third proportional to 143,345,964 and 221,355,810 is: 341,819,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,345,964 : 221,355,810 = 221,355,810 : x
  2. Step 2: Convert to fraction form
    143,345,964/221,355,810 = 221,355,810/x
  3. Step 3: Cross multiply
    143,345,964x = 221,355,810 × 221,355,810
  4. Step 4: Simplify right side
    143,345,964x = 48,998,394,620,756,096
  5. Step 5: Solve for x
    x = 48,998,394,620,756,096/143,345,964
  6. Step 6: Final answer
    x = 341,819,143.38

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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.