Home / 13,617,861.70-18,792,083.52-7,422,772.08

Finding the Fourth Proportional to 13,617,861.70, 18,792,083.52 and 7,422,772.08

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Solution

The fourth proportional to 13,617,861.70, 18,792,083.52 and 7,422,772.08 is: 10,243,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,861.70 : 18,792,083.52 = 7,422,772.08 : x
  2. Step 2: Convert to fraction form
    13,617,861.70/18,792,083.52 = 7,422,772.08/x
  3. Step 3: Cross multiply
    13,617,861.70x = 18,792,083.52 × 7,422,772.08
  4. Step 4: Simplify right side
    13,617,861.70x = 139,489,352,877,284.12
  5. Step 5: Solve for x
    x = 139,489,352,877,284.12/13,617,861.70
  6. Step 6: Final answer
    x = 10,243,117.16

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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.