Home / 19,152,801.60-28,729,202.40-11,972,443.20

Finding the Fourth Proportional to 19,152,801.60, 28,729,202.40 and 11,972,443.20

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Solution

The fourth proportional to 19,152,801.60, 28,729,202.40 and 11,972,443.20 is: 17,958,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,801.60 : 28,729,202.40 = 11,972,443.20 : x
  2. Step 2: Convert to fraction form
    19,152,801.60/28,729,202.40 = 11,972,443.20/x
  3. Step 3: Cross multiply
    19,152,801.60x = 28,729,202.40 × 11,972,443.20
  4. Step 4: Simplify right side
    19,152,801.60x = 343,958,743,915,303.62
  5. Step 5: Solve for x
    x = 343,958,743,915,303.62/19,152,801.60
  6. Step 6: Final answer
    x = 17,958,664.80

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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.