Home / 19,299,169.35-28,942,331.40-7,781,661.90

Finding the Fourth Proportional to 19,299,169.35, 28,942,331.40 and 7,781,661.90

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Solution

The fourth proportional to 19,299,169.35, 28,942,331.40 and 7,781,661.90 is: 11,669,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299,169.35 : 28,942,331.40 = 7,781,661.90 : x
  2. Step 2: Convert to fraction form
    19,299,169.35/28,942,331.40 = 7,781,661.90/x
  3. Step 3: Cross multiply
    19,299,169.35x = 28,942,331.40 × 7,781,661.90
  4. Step 4: Simplify right side
    19,299,169.35x = 225,219,437,552,553.66
  5. Step 5: Solve for x
    x = 225,219,437,552,553.66/19,299,169.35
  6. Step 6: Final answer
    x = 11,669,903.17

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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.