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Finding the Fourth Proportional to 885,657,956.09, 1,327,972,966.58 and 419,315,464.97

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Solution

The fourth proportional to 885,657,956.09, 1,327,972,966.58 and 419,315,464.97 is: 628,729,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,657,956.09 : 1,327,972,966.58 = 419,315,464.97 : x
  2. Step 2: Convert to fraction form
    885,657,956.09/1,327,972,966.58 = 419,315,464.97/x
  3. Step 3: Cross multiply
    885,657,956.09x = 1,327,972,966.58 × 419,315,464.97
  4. Step 4: Simplify right side
    885,657,956.09x = 556,839,601,954,062,016
  5. Step 5: Solve for x
    x = 556,839,601,954,062,016/885,657,956.09
  6. Step 6: Final answer
    x = 628,729,859.11

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1.5x scale

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.