Home / 66,534,918.75-145,612,510.31

Finding the Third Proportional to 66,534,918.75 and 145,612,510.31

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Solution

The third proportional to 66,534,918.75 and 145,612,510.31 is: 318,674,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,534,918.75 : 145,612,510.31 = 145,612,510.31 : x
  2. Step 2: Convert to fraction form
    66,534,918.75/145,612,510.31 = 145,612,510.31/x
  3. Step 3: Cross multiply
    66,534,918.75x = 145,612,510.31 × 145,612,510.31
  4. Step 4: Simplify right side
    66,534,918.75x = 21,203,003,159,507,920
  5. Step 5: Solve for x
    x = 21,203,003,159,507,920/66,534,918.75
  6. Step 6: Final answer
    x = 318,674,818.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.