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Finding the Third Proportional to 8,681,618 and 12,771,487

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Solution

The third proportional to 8,681,618 and 12,771,487 is: 18,788,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681,618 : 12,771,487 = 12,771,487 : x
  2. Step 2: Convert to fraction form
    8,681,618/12,771,487 = 12,771,487/x
  3. Step 3: Cross multiply
    8,681,618x = 12,771,487 × 12,771,487
  4. Step 4: Simplify right side
    8,681,618x = 163,110,880,191,169
  5. Step 5: Solve for x
    x = 163,110,880,191,169/8,681,618
  6. Step 6: Final answer
    x = 18,788,073.86

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.