Home / 12,339,499.20-18,501,472.80-5,156,030.40

Finding the Fourth Proportional to 12,339,499.20, 18,501,472.80 and 5,156,030.40

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Solution

The fourth proportional to 12,339,499.20, 18,501,472.80 and 5,156,030.40 is: 7,730,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339,499.20 : 18,501,472.80 = 5,156,030.40 : x
  2. Step 2: Convert to fraction form
    12,339,499.20/18,501,472.80 = 5,156,030.40/x
  3. Step 3: Cross multiply
    12,339,499.20x = 18,501,472.80 × 5,156,030.40
  4. Step 4: Simplify right side
    12,339,499.20x = 95,394,156,201,573.12
  5. Step 5: Solve for x
    x = 95,394,156,201,573.12/12,339,499.20
  6. Step 6: Final answer
    x = 7,730,796.42

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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.