Home / 13,424,212.80-18,525,318.72-7,312,641.60

Finding the Fourth Proportional to 13,424,212.80, 18,525,318.72 and 7,312,641.60

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Solution

The fourth proportional to 13,424,212.80, 18,525,318.72 and 7,312,641.60 is: 10,091,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424,212.80 : 18,525,318.72 = 7,312,641.60 : x
  2. Step 2: Convert to fraction form
    13,424,212.80/18,525,318.72 = 7,312,641.60/x
  3. Step 3: Cross multiply
    13,424,212.80x = 18,525,318.72 × 7,312,641.60
  4. Step 4: Simplify right side
    13,424,212.80x = 135,469,016,325,130.73
  5. Step 5: Solve for x
    x = 135,469,016,325,130.73/13,424,212.80
  6. Step 6: Final answer
    x = 10,091,393.69

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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.