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Finding the Third Proportional to 64,602,974 and 99,299,220

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Solution

The third proportional to 64,602,974 and 99,299,220 is: 152,629,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,602,974 : 99,299,220 = 99,299,220 : x
  2. Step 2: Convert to fraction form
    64,602,974/99,299,220 = 99,299,220/x
  3. Step 3: Cross multiply
    64,602,974x = 99,299,220 × 99,299,220
  4. Step 4: Simplify right side
    64,602,974x = 9,860,335,092,608,400
  5. Step 5: Solve for x
    x = 9,860,335,092,608,400/64,602,974
  6. Step 6: Final answer
    x = 152,629,739.50

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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.