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Finding the Fourth Proportional to 2,578,953,790.93, 3,869,189,662.87 and 832,123,757.65

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Solution

The fourth proportional to 2,578,953,790.93, 3,869,189,662.87 and 832,123,757.65 is: 1,248,430,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,953,790.93 : 3,869,189,662.87 = 832,123,757.65 : x
  2. Step 2: Convert to fraction form
    2,578,953,790.93/3,869,189,662.87 = 832,123,757.65/x
  3. Step 3: Cross multiply
    2,578,953,790.93x = 3,869,189,662.87 × 832,123,757.65
  4. Step 4: Simplify right side
    2,578,953,790.93x = 3,219,644,641,327,920,640
  5. Step 5: Solve for x
    x = 3,219,644,641,327,920,640/2,578,953,790.93
  6. Step 6: Final answer
    x = 1,248,430,527.39

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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.