Home / 12,617,223.04-18,927,661.40-3,978,391.28

Finding the Fourth Proportional to 12,617,223.04, 18,927,661.40 and 3,978,391.28

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Solution

The fourth proportional to 12,617,223.04, 18,927,661.40 and 3,978,391.28 is: 5,968,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617,223.04 : 18,927,661.40 = 3,978,391.28 : x
  2. Step 2: Convert to fraction form
    12,617,223.04/18,927,661.40 = 3,978,391.28/x
  3. Step 3: Cross multiply
    12,617,223.04x = 18,927,661.40 × 3,978,391.28
  4. Step 4: Simplify right side
    12,617,223.04x = 75,301,643,064,552.58
  5. Step 5: Solve for x
    x = 75,301,643,064,552.58/12,617,223.04
  6. Step 6: Final answer
    x = 5,968,162.95

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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.