Home / 13,873,769,813.42-19,145,816,512.14-7,530,138,954.21

Finding the Fourth Proportional to 13,873,769,813.42, 19,145,816,512.14 and 7,530,138,954.21

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Solution

The fourth proportional to 13,873,769,813.42, 19,145,816,512.14 and 7,530,138,954.21 is: 10,391,599,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873,769,813.42 : 19,145,816,512.14 = 7,530,138,954.21 : x
  2. Step 2: Convert to fraction form
    13,873,769,813.42/19,145,816,512.14 = 7,530,138,954.21/x
  3. Step 3: Cross multiply
    13,873,769,813.42x = 19,145,816,512.14 × 7,530,138,954.21
  4. Step 4: Simplify right side
    13,873,769,813.42x = 144,170,658,728,222,441,472
  5. Step 5: Solve for x
    x = 144,170,658,728,222,441,472/13,873,769,813.42
  6. Step 6: Final answer
    x = 10,391,599,447.53

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Double scale
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1.5x scale

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.