Home / 1,242,846,942.39-1,864,516,001.39-455,907,901.41

Finding the Fourth Proportional to 1,242,846,942.39, 1,864,516,001.39 and 455,907,901.41

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Solution

The fourth proportional to 1,242,846,942.39, 1,864,516,001.39 and 455,907,901.41 is: 683,951,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,846,942.39 : 1,864,516,001.39 = 455,907,901.41 : x
  2. Step 2: Convert to fraction form
    1,242,846,942.39/1,864,516,001.39 = 455,907,901.41/x
  3. Step 3: Cross multiply
    1,242,846,942.39x = 1,864,516,001.39 × 455,907,901.41
  4. Step 4: Simplify right side
    1,242,846,942.39x = 850,047,577,339,079,680
  5. Step 5: Solve for x
    x = 850,047,577,339,079,680/1,242,846,942.39
  6. Step 6: Final answer
    x = 683,951,939.97

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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.