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Finding the Third Proportional to 147,230,390 and 318,997,740

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Solution

The third proportional to 147,230,390 and 318,997,740 is: 691,158,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,230,390 : 318,997,740 = 318,997,740 : x
  2. Step 2: Convert to fraction form
    147,230,390/318,997,740 = 318,997,740/x
  3. Step 3: Cross multiply
    147,230,390x = 318,997,740 × 318,997,740
  4. Step 4: Simplify right side
    147,230,390x = 101,759,558,125,107,600
  5. Step 5: Solve for x
    x = 101,759,558,125,107,600/147,230,390
  6. Step 6: Final answer
    x = 691,158,653.63

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.