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Finding the Third Proportional to 20,173,808 and 31,520,424

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Solution

The third proportional to 20,173,808 and 31,520,424 is: 49,248,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173,808 : 31,520,424 = 31,520,424 : x
  2. Step 2: Convert to fraction form
    20,173,808/31,520,424 = 31,520,424/x
  3. Step 3: Cross multiply
    20,173,808x = 31,520,424 × 31,520,424
  4. Step 4: Simplify right side
    20,173,808x = 993,537,129,139,776
  5. Step 5: Solve for x
    x = 993,537,129,139,776/20,173,808
  6. Step 6: Final answer
    x = 49,248,864.13

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.