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Finding the Third Proportional to 21,703,310 and 28,931,991

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Solution

The third proportional to 21,703,310 and 28,931,991 is: 38,568,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703,310 : 28,931,991 = 28,931,991 : x
  2. Step 2: Convert to fraction form
    21,703,310/28,931,991 = 28,931,991/x
  3. Step 3: Cross multiply
    21,703,310x = 28,931,991 × 28,931,991
  4. Step 4: Simplify right side
    21,703,310x = 837,060,103,224,081
  5. Step 5: Solve for x
    x = 837,060,103,224,081/21,703,310
  6. Step 6: Final answer
    x = 38,568,315.30

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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.