Home / 15,718,138,828.50-21,690,919,278.82-8,581,552,407.30

Finding the Fourth Proportional to 15,718,138,828.50, 21,690,919,278.82 and 8,581,552,407.30

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Solution

The fourth proportional to 15,718,138,828.50, 21,690,919,278.82 and 8,581,552,407.30 is: 11,842,481,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,138,828.50 : 21,690,919,278.82 = 8,581,552,407.30 : x
  2. Step 2: Convert to fraction form
    15,718,138,828.50/21,690,919,278.82 = 8,581,552,407.30/x
  3. Step 3: Cross multiply
    15,718,138,828.50x = 21,690,919,278.82 × 8,581,552,407.30
  4. Step 4: Simplify right side
    15,718,138,828.50x = 186,141,760,553,707,765,760
  5. Step 5: Solve for x
    x = 186,141,760,553,707,765,760/15,718,138,828.50
  6. Step 6: Final answer
    x = 11,842,481,007.75

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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.