Home / 18,593,125.80-27,889,688.70-13,172,427.60

Finding the Fourth Proportional to 18,593,125.80, 27,889,688.70 and 13,172,427.60

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Solution

The fourth proportional to 18,593,125.80, 27,889,688.70 and 13,172,427.60 is: 19,758,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593,125.80 : 27,889,688.70 = 13,172,427.60 : x
  2. Step 2: Convert to fraction form
    18,593,125.80/27,889,688.70 = 13,172,427.60/x
  3. Step 3: Cross multiply
    18,593,125.80x = 27,889,688.70 × 13,172,427.60
  4. Step 4: Simplify right side
    18,593,125.80x = 367,374,905,187,288.12
  5. Step 5: Solve for x
    x = 367,374,905,187,288.12/18,593,125.80
  6. Step 6: Final answer
    x = 19,758,641.40

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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.