Home / 18,637,866.51-25,728,191.96-12,529,837.95

Finding the Fourth Proportional to 18,637,866.51, 25,728,191.96 and 12,529,837.95

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Solution

The fourth proportional to 18,637,866.51, 25,728,191.96 and 12,529,837.95 is: 17,296,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637,866.51 : 25,728,191.96 = 12,529,837.95 : x
  2. Step 2: Convert to fraction form
    18,637,866.51/25,728,191.96 = 12,529,837.95/x
  3. Step 3: Cross multiply
    18,637,866.51x = 25,728,191.96 × 12,529,837.95
  4. Step 4: Simplify right side
    18,637,866.51x = 322,370,076,005,292.88
  5. Step 5: Solve for x
    x = 322,370,076,005,292.88/18,637,866.51
  6. Step 6: Final answer
    x = 17,296,511.69

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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.