Home / 139,812,310.71-192,942,501.78-77,088,530.04

Finding the Fourth Proportional to 139,812,310.71, 192,942,501.78 and 77,088,530.04

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Solution

The fourth proportional to 139,812,310.71, 192,942,501.78 and 77,088,530.04 is: 106,383,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,812,310.71 : 192,942,501.78 = 77,088,530.04 : x
  2. Step 2: Convert to fraction form
    139,812,310.71/192,942,501.78 = 77,088,530.04/x
  3. Step 3: Cross multiply
    139,812,310.71x = 192,942,501.78 × 77,088,530.04
  4. Step 4: Simplify right side
    139,812,310.71x = 14,873,653,844,460,284
  5. Step 5: Solve for x
    x = 14,873,653,844,460,284/139,812,310.71
  6. Step 6: Final answer
    x = 106,383,005.68

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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.