Home / 642,699,022.25-964,353,190.68-310,519,826.84

Finding the Fourth Proportional to 642,699,022.25, 964,353,190.68 and 310,519,826.84

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Solution

The fourth proportional to 642,699,022.25, 964,353,190.68 and 310,519,826.84 is: 465,926,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,699,022.25 : 964,353,190.68 = 310,519,826.84 : x
  2. Step 2: Convert to fraction form
    642,699,022.25/964,353,190.68 = 310,519,826.84/x
  3. Step 3: Cross multiply
    642,699,022.25x = 964,353,190.68 × 310,519,826.84
  4. Step 4: Simplify right side
    642,699,022.25x = 299,450,785,784,965,952
  5. Step 5: Solve for x
    x = 299,450,785,784,965,952/642,699,022.25
  6. Step 6: Final answer
    x = 465,926,935.34

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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.