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Finding the Third Proportional to 21,687,312 and 28,913,184

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Solution

The third proportional to 21,687,312 and 28,913,184 is: 38,546,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,312 : 28,913,184 = 28,913,184 : x
  2. Step 2: Convert to fraction form
    21,687,312/28,913,184 = 28,913,184/x
  3. Step 3: Cross multiply
    21,687,312x = 28,913,184 × 28,913,184
  4. Step 4: Simplify right side
    21,687,312x = 835,972,209,017,856
  5. Step 5: Solve for x
    x = 835,972,209,017,856/21,687,312
  6. Step 6: Final answer
    x = 38,546,603.15

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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.