Home / 12,768,404.20-19,152,606.30-7,981,498.60

Finding the Fourth Proportional to 12,768,404.20, 19,152,606.30 and 7,981,498.60

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Solution

The fourth proportional to 12,768,404.20, 19,152,606.30 and 7,981,498.60 is: 11,972,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,404.20 : 19,152,606.30 = 7,981,498.60 : x
  2. Step 2: Convert to fraction form
    12,768,404.20/19,152,606.30 = 7,981,498.60/x
  3. Step 3: Cross multiply
    12,768,404.20x = 19,152,606.30 × 7,981,498.60
  4. Step 4: Simplify right side
    12,768,404.20x = 152,866,500,369,801.19
  5. Step 5: Solve for x
    x = 152,866,500,369,801.19/12,768,404.20
  6. Step 6: Final answer
    x = 11,972,247.90

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1.5x scale

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.