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Finding the Third Proportional to 139,804,989 and 209,707,502

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Solution

The third proportional to 139,804,989 and 209,707,502 is: 314,561,280.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,804,989 : 209,707,502 = 209,707,502 : x
  2. Step 2: Convert to fraction form
    139,804,989/209,707,502 = 209,707,502/x
  3. Step 3: Cross multiply
    139,804,989x = 209,707,502 × 209,707,502
  4. Step 4: Simplify right side
    139,804,989x = 43,977,236,395,080,000
  5. Step 5: Solve for x
    x = 43,977,236,395,080,000/139,804,989
  6. Step 6: Final answer
    x = 314,561,280.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.