Home / 12,435,857.56-18,657,247.05-5,425,586.48

Finding the Fourth Proportional to 12,435,857.56, 18,657,247.05 and 5,425,586.48

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Solution

The fourth proportional to 12,435,857.56, 18,657,247.05 and 5,425,586.48 is: 8,139,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435,857.56 : 18,657,247.05 = 5,425,586.48 : x
  2. Step 2: Convert to fraction form
    12,435,857.56/18,657,247.05 = 5,425,586.48/x
  3. Step 3: Cross multiply
    12,435,857.56x = 18,657,247.05 × 5,425,586.48
  4. Step 4: Simplify right side
    12,435,857.56x = 101,226,507,348,499.89
  5. Step 5: Solve for x
    x = 101,226,507,348,499.89/12,435,857.56
  6. Step 6: Final answer
    x = 8,139,889.58

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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.