Home / 279,242,072.28-385,381,278.98-208,554,961.81

Finding the Fourth Proportional to 279,242,072.28, 385,381,278.98 and 208,554,961.81

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Solution

The fourth proportional to 279,242,072.28, 385,381,278.98 and 208,554,961.81 is: 287,826,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,242,072.28 : 385,381,278.98 = 208,554,961.81 : x
  2. Step 2: Convert to fraction form
    279,242,072.28/385,381,278.98 = 208,554,961.81/x
  3. Step 3: Cross multiply
    279,242,072.28x = 385,381,278.98 × 208,554,961.81
  4. Step 4: Simplify right side
    279,242,072.28x = 80,373,177,917,956,640
  5. Step 5: Solve for x
    x = 80,373,177,917,956,640/279,242,072.28
  6. Step 6: Final answer
    x = 287,826,176.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.