Home / 11,988,617,886.80-17,948,489,453.40-7,339,572,018.80

Finding the Fourth Proportional to 11,988,617,886.80, 17,948,489,453.40 and 7,339,572,018.80

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Solution

The fourth proportional to 11,988,617,886.80, 17,948,489,453.40 and 7,339,572,018.80 is: 10,988,275,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988,617,886.80 : 17,948,489,453.40 = 7,339,572,018.80 : x
  2. Step 2: Convert to fraction form
    11,988,617,886.80/17,948,489,453.40 = 7,339,572,018.80/x
  3. Step 3: Cross multiply
    11,988,617,886.80x = 17,948,489,453.40 × 7,339,572,018.80
  4. Step 4: Simplify right side
    11,988,617,886.80x = 131,734,230,971,901,558,784
  5. Step 5: Solve for x
    x = 131,734,230,971,901,558,784/11,988,617,886.80
  6. Step 6: Final answer
    x = 10,988,275,063.55

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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.