Home / 12,294,817.20-18,429,784.20-7,243,527.60

Finding the Fourth Proportional to 12,294,817.20, 18,429,784.20 and 7,243,527.60

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Solution

The fourth proportional to 12,294,817.20, 18,429,784.20 and 7,243,527.60 is: 10,857,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294,817.20 : 18,429,784.20 = 7,243,527.60 : x
  2. Step 2: Convert to fraction form
    12,294,817.20/18,429,784.20 = 7,243,527.60/x
  3. Step 3: Cross multiply
    12,294,817.20x = 18,429,784.20 × 7,243,527.60
  4. Step 4: Simplify right side
    12,294,817.20x = 133,496,650,514,743.91
  5. Step 5: Solve for x
    x = 133,496,650,514,743.91/12,294,817.20
  6. Step 6: Final answer
    x = 10,857,961.39

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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.