Home / 18,845,897.70-28,268,846.55-12,388,889.55

Finding the Fourth Proportional to 18,845,897.70, 28,268,846.55 and 12,388,889.55

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Solution

The fourth proportional to 18,845,897.70, 28,268,846.55 and 12,388,889.55 is: 18,583,334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845,897.70 : 28,268,846.55 = 12,388,889.55 : x
  2. Step 2: Convert to fraction form
    18,845,897.70/28,268,846.55 = 12,388,889.55/x
  3. Step 3: Cross multiply
    18,845,897.70x = 28,268,846.55 × 12,388,889.55
  4. Step 4: Simplify right side
    18,845,897.70x = 350,219,617,613,848.56
  5. Step 5: Solve for x
    x = 350,219,617,613,848.56/18,845,897.70
  6. Step 6: Final answer
    x = 18,583,334.33

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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.