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Finding the Third Proportional to 20,271,864 and 31,415,460

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Solution

The third proportional to 20,271,864 and 31,415,460 is: 48,684,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271,864 : 31,415,460 = 31,415,460 : x
  2. Step 2: Convert to fraction form
    20,271,864/31,415,460 = 31,415,460/x
  3. Step 3: Cross multiply
    20,271,864x = 31,415,460 × 31,415,460
  4. Step 4: Simplify right side
    20,271,864x = 986,931,127,011,600
  5. Step 5: Solve for x
    x = 986,931,127,011,600/20,271,864
  6. Step 6: Final answer
    x = 48,684,774.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.