Home / 19,151,796.80-28,728,991.20-7,792,443.20

Finding the Fourth Proportional to 19,151,796.80, 28,728,991.20 and 7,792,443.20

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Solution

The fourth proportional to 19,151,796.80, 28,728,991.20 and 7,792,443.20 is: 11,689,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151,796.80 : 28,728,991.20 = 7,792,443.20 : x
  2. Step 2: Convert to fraction form
    19,151,796.80/28,728,991.20 = 7,792,443.20/x
  3. Step 3: Cross multiply
    19,151,796.80x = 28,728,991.20 × 7,792,443.20
  4. Step 4: Simplify right side
    19,151,796.80x = 223,869,032,119,299.84
  5. Step 5: Solve for x
    x = 223,869,032,119,299.84/19,151,796.80
  6. Step 6: Final answer
    x = 11,689,192.11

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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.