Home / 13,369,411.75-18,450,011.78-7,257,840.25

Finding the Fourth Proportional to 13,369,411.75, 18,450,011.78 and 7,257,840.25

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Solution

The fourth proportional to 13,369,411.75, 18,450,011.78 and 7,257,840.25 is: 10,015,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369,411.75 : 18,450,011.78 = 7,257,840.25 : x
  2. Step 2: Convert to fraction form
    13,369,411.75/18,450,011.78 = 7,257,840.25/x
  3. Step 3: Cross multiply
    13,369,411.75x = 18,450,011.78 × 7,257,840.25
  4. Step 4: Simplify right side
    13,369,411.75x = 133,907,238,109,858.16
  5. Step 5: Solve for x
    x = 133,907,238,109,858.16/13,369,411.75
  6. Step 6: Final answer
    x = 10,015,940.91

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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.