Home / 13,617,808.74-18,792,010.58-7,422,719.12

Finding the Fourth Proportional to 13,617,808.74, 18,792,010.58 and 7,422,719.12

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Solution

The fourth proportional to 13,617,808.74, 18,792,010.58 and 7,422,719.12 is: 10,243,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,808.74 : 18,792,010.58 = 7,422,719.12 : x
  2. Step 2: Convert to fraction form
    13,617,808.74/18,792,010.58 = 7,422,719.12/x
  3. Step 3: Cross multiply
    13,617,808.74x = 18,792,010.58 × 7,422,719.12
  4. Step 4: Simplify right side
    13,617,808.74x = 139,487,816,235,408.28
  5. Step 5: Solve for x
    x = 139,487,816,235,408.28/13,617,808.74
  6. Step 6: Final answer
    x = 10,243,044.16

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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.