Home / 102,504,905,709.18-153,701,307,022.68-81,392,970,971.56

Finding the Fourth Proportional to 102,504,905,709.18, 153,701,307,022.68 and 81,392,970,971.56

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Solution

The fourth proportional to 102,504,905,709.18, 153,701,307,022.68 and 81,392,970,971.56 is: 122,044,949,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,504,905,709.18 : 153,701,307,022.68 = 81,392,970,971.56 : x
  2. Step 2: Convert to fraction form
    102,504,905,709.18/153,701,307,022.68 = 81,392,970,971.56/x
  3. Step 3: Cross multiply
    102,504,905,709.18x = 153,701,307,022.68 × 81,392,970,971.56
  4. Step 4: Simplify right side
    102,504,905,709.18x = 12,510,206,020,787,822,919,680
  5. Step 5: Solve for x
    x = 12,510,206,020,787,822,919,680/102,504,905,709.18
  6. Step 6: Final answer
    x = 122,044,949,304.97

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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.