Home / 12,294,988.20-18,430,040.70-7,243,698.60

Finding the Fourth Proportional to 12,294,988.20, 18,430,040.70 and 7,243,698.60

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Solution

The fourth proportional to 12,294,988.20, 18,430,040.70 and 7,243,698.60 is: 10,858,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294,988.20 : 18,430,040.70 = 7,243,698.60 : x
  2. Step 2: Convert to fraction form
    12,294,988.20/18,430,040.70 = 7,243,698.60/x
  3. Step 3: Cross multiply
    12,294,988.20x = 18,430,040.70 × 7,243,698.60
  4. Step 4: Simplify right side
    12,294,988.20x = 133,501,660,016,533
  5. Step 5: Solve for x
    x = 133,501,660,016,533/12,294,988.20
  6. Step 6: Final answer
    x = 10,858,217.82

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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.