Home / 21,136,207,786.14-29,166,241,635.15-12,444,290,940.78

Finding the Fourth Proportional to 21,136,207,786.14, 29,166,241,635.15 and 12,444,290,940.78

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Solution

The fourth proportional to 21,136,207,786.14, 29,166,241,635.15 and 12,444,290,940.78 is: 17,172,105,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136,207,786.14 : 29,166,241,635.15 = 12,444,290,940.78 : x
  2. Step 2: Convert to fraction form
    21,136,207,786.14/29,166,241,635.15 = 12,444,290,940.78/x
  3. Step 3: Cross multiply
    21,136,207,786.14x = 29,166,241,635.15 × 12,444,290,940.78
  4. Step 4: Simplify right side
    21,136,207,786.14x = 362,953,196,556,897,615,872
  5. Step 5: Solve for x
    x = 362,953,196,556,897,615,872/21,136,207,786.14
  6. Step 6: Final answer
    x = 17,172,105,811.47

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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.