Home / 12,589,318.40-18,883,977.60-11,623,539.20

Finding the Fourth Proportional to 12,589,318.40, 18,883,977.60 and 11,623,539.20

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Solution

The fourth proportional to 12,589,318.40, 18,883,977.60 and 11,623,539.20 is: 17,435,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,318.40 : 18,883,977.60 = 11,623,539.20 : x
  2. Step 2: Convert to fraction form
    12,589,318.40/18,883,977.60 = 11,623,539.20/x
  3. Step 3: Cross multiply
    12,589,318.40x = 18,883,977.60 × 11,623,539.20
  4. Step 4: Simplify right side
    12,589,318.40x = 219,498,653,885,521.94
  5. Step 5: Solve for x
    x = 219,498,653,885,521.94/12,589,318.40
  6. Step 6: Final answer
    x = 17,435,308.80

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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.