Home / 128,082,825.07-176,754,044.78-69,345,474.19

Finding the Fourth Proportional to 128,082,825.07, 176,754,044.78 and 69,345,474.19

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Solution

The fourth proportional to 128,082,825.07, 176,754,044.78 and 69,345,474.19 is: 95,696,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,082,825.07 : 176,754,044.78 = 69,345,474.19 : x
  2. Step 2: Convert to fraction form
    128,082,825.07/176,754,044.78 = 69,345,474.19/x
  3. Step 3: Cross multiply
    128,082,825.07x = 176,754,044.78 × 69,345,474.19
  4. Step 4: Simplify right side
    128,082,825.07x = 12,257,093,049,922,866
  5. Step 5: Solve for x
    x = 12,257,093,049,922,866/128,082,825.07
  6. Step 6: Final answer
    x = 95,696,616.96

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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.