Home / 381,115,344.12-571,700,340.32-159,563,736.15

Finding the Fourth Proportional to 381,115,344.12, 571,700,340.32 and 159,563,736.15

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Solution

The fourth proportional to 381,115,344.12, 571,700,340.32 and 159,563,736.15 is: 239,357,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,115,344.12 : 571,700,340.32 = 159,563,736.15 : x
  2. Step 2: Convert to fraction form
    381,115,344.12/571,700,340.32 = 159,563,736.15/x
  3. Step 3: Cross multiply
    381,115,344.12x = 571,700,340.32 × 159,563,736.15
  4. Step 4: Simplify right side
    381,115,344.12x = 91,222,642,258,887,888
  5. Step 5: Solve for x
    x = 91,222,642,258,887,888/381,115,344.12
  6. Step 6: Final answer
    x = 239,357,044.18

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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.