Home / 66,081,799,728.66-99,122,575,872.40-20,705,981,612.52

Finding the Fourth Proportional to 66,081,799,728.66, 99,122,575,872.40 and 20,705,981,612.52

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Solution

The fourth proportional to 66,081,799,728.66, 99,122,575,872.40 and 20,705,981,612.52 is: 31,058,933,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081,799,728.66 : 99,122,575,872.40 = 20,705,981,612.52 : x
  2. Step 2: Convert to fraction form
    66,081,799,728.66/99,122,575,872.40 = 20,705,981,612.52/x
  3. Step 3: Cross multiply
    66,081,799,728.66x = 99,122,575,872.40 × 20,705,981,612.52
  4. Step 4: Simplify right side
    66,081,799,728.66x = 2,052,430,233,399,136,354,304
  5. Step 5: Solve for x
    x = 2,052,430,233,399,136,354,304/66,081,799,728.66
  6. Step 6: Final answer
    x = 31,058,933,652.33

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Why These Related Problems?

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