Home / 18,637,867.50-25,728,193.34-12,529,838.94

Finding the Fourth Proportional to 18,637,867.50, 25,728,193.34 and 12,529,838.94

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Solution

The fourth proportional to 18,637,867.50, 25,728,193.34 and 12,529,838.94 is: 17,296,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637,867.50 : 25,728,193.34 = 12,529,838.94 : x
  2. Step 2: Convert to fraction form
    18,637,867.50/25,728,193.34 = 12,529,838.94/x
  3. Step 3: Cross multiply
    18,637,867.50x = 25,728,193.34 × 12,529,838.94
  4. Step 4: Simplify right side
    18,637,867.50x = 322,370,118,767,380.62
  5. Step 5: Solve for x
    x = 322,370,118,767,380.62/18,637,867.50
  6. Step 6: Final answer
    x = 17,296,513.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.