Home / 13,122,003.60-19,683,005.40-7,382,440.80

Finding the Fourth Proportional to 13,122,003.60, 19,683,005.40 and 7,382,440.80

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Solution

The fourth proportional to 13,122,003.60, 19,683,005.40 and 7,382,440.80 is: 11,073,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,003.60 : 19,683,005.40 = 7,382,440.80 : x
  2. Step 2: Convert to fraction form
    13,122,003.60/19,683,005.40 = 7,382,440.80/x
  3. Step 3: Cross multiply
    13,122,003.60x = 19,683,005.40 × 7,382,440.80
  4. Step 4: Simplify right side
    13,122,003.60x = 145,308,622,131,580.31
  5. Step 5: Solve for x
    x = 145,308,622,131,580.31/13,122,003.60
  6. Step 6: Final answer
    x = 11,073,661.20

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1.5x scale

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.