Home / 19,981,355,742.72-29,960,415,794.88-7,560,645,811.20

Finding the Fourth Proportional to 19,981,355,742.72, 29,960,415,794.88 and 7,560,645,811.20

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Solution

The fourth proportional to 19,981,355,742.72, 29,960,415,794.88 and 7,560,645,811.20 is: 11,336,572,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981,355,742.72 : 29,960,415,794.88 = 7,560,645,811.20 : x
  2. Step 2: Convert to fraction form
    19,981,355,742.72/29,960,415,794.88 = 7,560,645,811.20/x
  3. Step 3: Cross multiply
    19,981,355,742.72x = 29,960,415,794.88 × 7,560,645,811.20
  4. Step 4: Simplify right side
    19,981,355,742.72x = 226,520,092,181,369,782,272
  5. Step 5: Solve for x
    x = 226,520,092,181,369,782,272/19,981,355,742.72
  6. Step 6: Final answer
    x = 11,336,572,707.98

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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.