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Finding the Third Proportional to 155,421,660 and 340,044,897

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Solution

The third proportional to 155,421,660 and 340,044,897 is: 743,979,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,421,660 : 340,044,897 = 340,044,897 : x
  2. Step 2: Convert to fraction form
    155,421,660/340,044,897 = 340,044,897/x
  3. Step 3: Cross multiply
    155,421,660x = 340,044,897 × 340,044,897
  4. Step 4: Simplify right side
    155,421,660x = 115,630,531,975,740,608
  5. Step 5: Solve for x
    x = 115,630,531,975,740,608/155,421,660
  6. Step 6: Final answer
    x = 743,979,519.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.