Home / 14,398,791.65-19,870,520.94-7,872,428.61

Finding the Fourth Proportional to 14,398,791.65, 19,870,520.94 and 7,872,428.61

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Solution

The fourth proportional to 14,398,791.65, 19,870,520.94 and 7,872,428.61 is: 10,864,054.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398,791.65 : 19,870,520.94 = 7,872,428.61 : x
  2. Step 2: Convert to fraction form
    14,398,791.65/19,870,520.94 = 7,872,428.61/x
  3. Step 3: Cross multiply
    14,398,791.65x = 19,870,520.94 × 7,872,428.61
  4. Step 4: Simplify right side
    14,398,791.65x = 156,429,257,543,660.12
  5. Step 5: Solve for x
    x = 156,429,257,543,660.12/14,398,791.65
  6. Step 6: Final answer
    x = 10,864,054.52

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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.