Home / 305,206,430,653.22-457,809,645,979.84-126,072,882,051.85

Finding the Fourth Proportional to 305,206,430,653.22, 457,809,645,979.84 and 126,072,882,051.85

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Solution

The fourth proportional to 305,206,430,653.22, 457,809,645,979.84 and 126,072,882,051.85 is: 189,109,323,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,206,430,653.22 : 457,809,645,979.84 = 126,072,882,051.85 : x
  2. Step 2: Convert to fraction form
    305,206,430,653.22/457,809,645,979.84 = 126,072,882,051.85/x
  3. Step 3: Cross multiply
    305,206,430,653.22x = 457,809,645,979.84 × 126,072,882,051.85
  4. Step 4: Simplify right side
    305,206,430,653.22x = 57,717,381,499,815,576,207,360
  5. Step 5: Solve for x
    x = 57,717,381,499,815,576,207,360/305,206,430,653.22
  6. Step 6: Final answer
    x = 189,109,323,077.78

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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.