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Finding the Third Proportional to 10,660,428 and 15,193,278

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Solution

The third proportional to 10,660,428 and 15,193,278 is: 21,653,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660,428 : 15,193,278 = 15,193,278 : x
  2. Step 2: Convert to fraction form
    10,660,428/15,193,278 = 15,193,278/x
  3. Step 3: Cross multiply
    10,660,428x = 15,193,278 × 15,193,278
  4. Step 4: Simplify right side
    10,660,428x = 230,835,696,385,284
  5. Step 5: Solve for x
    x = 230,835,696,385,284/10,660,428
  6. Step 6: Final answer
    x = 21,653,511.13

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.