Home / 12,949,824.65-17,870,761.08-7,148,610.32

Finding the Fourth Proportional to 12,949,824.65, 17,870,761.08 and 7,148,610.32

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Solution

The fourth proportional to 12,949,824.65, 17,870,761.08 and 7,148,610.32 is: 9,865,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,824.65 : 17,870,761.08 = 7,148,610.32 : x
  2. Step 2: Convert to fraction form
    12,949,824.65/17,870,761.08 = 7,148,610.32/x
  3. Step 3: Cross multiply
    12,949,824.65x = 17,870,761.08 × 7,148,610.32
  4. Step 4: Simplify right side
    12,949,824.65x = 127,751,106,993,388.53
  5. Step 5: Solve for x
    x = 127,751,106,993,388.53/12,949,824.65
  6. Step 6: Final answer
    x = 9,865,083.93

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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.