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Finding the Third Proportional to 20,572,502 and 28,020,708

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Solution

The third proportional to 20,572,502 and 28,020,708 is: 38,165,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,502 : 28,020,708 = 28,020,708 : x
  2. Step 2: Convert to fraction form
    20,572,502/28,020,708 = 28,020,708/x
  3. Step 3: Cross multiply
    20,572,502x = 28,020,708 × 28,020,708
  4. Step 4: Simplify right side
    20,572,502x = 785,160,076,821,264
  5. Step 5: Solve for x
    x = 785,160,076,821,264/20,572,502
  6. Step 6: Final answer
    x = 38,165,512.24

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.