Home / 14,398,790.65-19,870,519.56-7,872,427.61

Finding the Fourth Proportional to 14,398,790.65, 19,870,519.56 and 7,872,427.61

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Solution

The fourth proportional to 14,398,790.65, 19,870,519.56 and 7,872,427.61 is: 10,864,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398,790.65 : 19,870,519.56 = 7,872,427.61 : x
  2. Step 2: Convert to fraction form
    14,398,790.65/19,870,519.56 = 7,872,427.61/x
  3. Step 3: Cross multiply
    14,398,790.65x = 19,870,519.56 × 7,872,427.61
  4. Step 4: Simplify right side
    14,398,790.65x = 156,429,226,866,600.97
  5. Step 5: Solve for x
    x = 156,429,226,866,600.97/14,398,790.65
  6. Step 6: Final answer
    x = 10,864,053.15

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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.