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Finding the Third Proportional to 64,602,990 and 99,299,270

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Solution

The third proportional to 64,602,990 and 99,299,270 is: 152,629,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,602,990 : 99,299,270 = 99,299,270 : x
  2. Step 2: Convert to fraction form
    64,602,990/99,299,270 = 99,299,270/x
  3. Step 3: Cross multiply
    64,602,990x = 99,299,270 × 99,299,270
  4. Step 4: Simplify right side
    64,602,990x = 9,860,345,022,532,900
  5. Step 5: Solve for x
    x = 9,860,345,022,532,900/64,602,990
  6. Step 6: Final answer
    x = 152,629,855.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.