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Finding the Third Proportional to 8,708,128 and 13,065,472

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Solution

The third proportional to 8,708,128 and 13,065,472 is: 19,603,129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708,128 : 13,065,472 = 13,065,472 : x
  2. Step 2: Convert to fraction form
    8,708,128/13,065,472 = 13,065,472/x
  3. Step 3: Cross multiply
    8,708,128x = 13,065,472 × 13,065,472
  4. Step 4: Simplify right side
    8,708,128x = 170,706,558,582,784
  5. Step 5: Solve for x
    x = 170,706,558,582,784/8,708,128
  6. Step 6: Final answer
    x = 19,603,129.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.