Home / 13,981,396,786.32-19,298,925,621.36-11,128,771,629.12

Finding the Fourth Proportional to 13,981,396,786.32, 19,298,925,621.36 and 11,128,771,629.12

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Solution

The fourth proportional to 13,981,396,786.32, 19,298,925,621.36 and 11,128,771,629.12 is: 15,361,364,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981,396,786.32 : 19,298,925,621.36 = 11,128,771,629.12 : x
  2. Step 2: Convert to fraction form
    13,981,396,786.32/19,298,925,621.36 = 11,128,771,629.12/x
  3. Step 3: Cross multiply
    13,981,396,786.32x = 19,298,925,621.36 × 11,128,771,629.12
  4. Step 4: Simplify right side
    13,981,396,786.32x = 214,773,335,927,488,249,856
  5. Step 5: Solve for x
    x = 214,773,335,927,488,249,856/13,981,396,786.32
  6. Step 6: Final answer
    x = 15,361,364,762.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.