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Finding the Fourth Proportional to 279,780,941.80, 419,671,412.70 and 88,304,717.80

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Solution

The fourth proportional to 279,780,941.80, 419,671,412.70 and 88,304,717.80 is: 132,457,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,780,941.80 : 419,671,412.70 = 88,304,717.80 : x
  2. Step 2: Convert to fraction form
    279,780,941.80/419,671,412.70 = 88,304,717.80/x
  3. Step 3: Cross multiply
    279,780,941.80x = 419,671,412.70 × 88,304,717.80
  4. Step 4: Simplify right side
    279,780,941.80x = 37,058,965,667,200,832
  5. Step 5: Solve for x
    x = 37,058,965,667,200,832/279,780,941.80
  6. Step 6: Final answer
    x = 132,457,076.70

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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.