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Finding the Third Proportional to 52,640,128.50 and 81,830,820

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Solution

The third proportional to 52,640,128.50 and 81,830,820 is: 127,208,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640,128.50 : 81,830,820 = 81,830,820 : x
  2. Step 2: Convert to fraction form
    52,640,128.50/81,830,820 = 81,830,820/x
  3. Step 3: Cross multiply
    52,640,128.50x = 81,830,820 × 81,830,820
  4. Step 4: Simplify right side
    52,640,128.50x = 6,696,283,101,872,400
  5. Step 5: Solve for x
    x = 6,696,283,101,872,400/52,640,128.50
  6. Step 6: Final answer
    x = 127,208,714.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.