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Finding the Third Proportional to 248,513,209.50 and 388,994,438.25

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Solution

The third proportional to 248,513,209.50 and 388,994,438.25 is: 608,887,846.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,513,209.50 : 388,994,438.25 = 388,994,438.25 : x
  2. Step 2: Convert to fraction form
    248,513,209.50/388,994,438.25 = 388,994,438.25/x
  3. Step 3: Cross multiply
    248,513,209.50x = 388,994,438.25 × 388,994,438.25
  4. Step 4: Simplify right side
    248,513,209.50x = 151,316,672,989,433,056
  5. Step 5: Solve for x
    x = 151,316,672,989,433,056/248,513,209.50
  6. Step 6: Final answer
    x = 608,887,846.62

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.