Home / 189,696,589.56-261,701,133.51-126,992,889.71

Finding the Fourth Proportional to 189,696,589.56, 261,701,133.51 and 126,992,889.71

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Solution

The fourth proportional to 189,696,589.56, 261,701,133.51 and 126,992,889.71 is: 175,196,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,696,589.56 : 261,701,133.51 = 126,992,889.71 : x
  2. Step 2: Convert to fraction form
    189,696,589.56/261,701,133.51 = 126,992,889.71/x
  3. Step 3: Cross multiply
    189,696,589.56x = 261,701,133.51 × 126,992,889.71
  4. Step 4: Simplify right side
    189,696,589.56x = 33,234,183,184,817,412
  5. Step 5: Solve for x
    x = 33,234,183,184,817,412/189,696,589.56
  6. Step 6: Final answer
    x = 175,196,524.42

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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.