Home / 12,170,871.48-18,227,325.92-7,042,493.52

Finding the Fourth Proportional to 12,170,871.48, 18,227,325.92 and 7,042,493.52

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Solution

The fourth proportional to 12,170,871.48, 18,227,325.92 and 7,042,493.52 is: 10,546,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,871.48 : 18,227,325.92 = 7,042,493.52 : x
  2. Step 2: Convert to fraction form
    12,170,871.48/18,227,325.92 = 7,042,493.52/x
  3. Step 3: Cross multiply
    12,170,871.48x = 18,227,325.92 × 7,042,493.52
  4. Step 4: Simplify right side
    12,170,871.48x = 128,365,824,678,528.05
  5. Step 5: Solve for x
    x = 128,365,824,678,528.05/12,170,871.48
  6. Step 6: Final answer
    x = 10,546,970.68

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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.