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Finding the Third Proportional to 219,605,520 and 292,772,950

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Solution

The third proportional to 219,605,520 and 292,772,950 is: 390,318,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,605,520 : 292,772,950 = 292,772,950 : x
  2. Step 2: Convert to fraction form
    219,605,520/292,772,950 = 292,772,950/x
  3. Step 3: Cross multiply
    219,605,520x = 292,772,950 × 292,772,950
  4. Step 4: Simplify right side
    219,605,520x = 85,716,000,251,702,496
  5. Step 5: Solve for x
    x = 85,716,000,251,702,496/219,605,520
  6. Step 6: Final answer
    x = 390,318,058.73

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.