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Finding the Third Proportional to 12,934,386 and 20,290,207

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Solution

The third proportional to 12,934,386 and 20,290,207 is: 31,829,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934,386 : 20,290,207 = 20,290,207 : x
  2. Step 2: Convert to fraction form
    12,934,386/20,290,207 = 20,290,207/x
  3. Step 3: Cross multiply
    12,934,386x = 20,290,207 × 20,290,207
  4. Step 4: Simplify right side
    12,934,386x = 411,692,500,102,849
  5. Step 5: Solve for x
    x = 411,692,500,102,849/12,934,386
  6. Step 6: Final answer
    x = 31,829,303.70

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.