Home / 15,135,907,786.42-20,887,561,125.70-8,175,621,495.26

Finding the Fourth Proportional to 15,135,907,786.42, 20,887,561,125.70 and 8,175,621,495.26

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Solution

The fourth proportional to 15,135,907,786.42, 20,887,561,125.70 and 8,175,621,495.26 is: 11,282,362,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135,907,786.42 : 20,887,561,125.70 = 8,175,621,495.26 : x
  2. Step 2: Convert to fraction form
    15,135,907,786.42/20,887,561,125.70 = 8,175,621,495.26/x
  3. Step 3: Cross multiply
    15,135,907,786.42x = 20,887,561,125.70 × 8,175,621,495.26
  4. Step 4: Simplify right side
    15,135,907,786.42x = 170,768,793,722,874,134,528
  5. Step 5: Solve for x
    x = 170,768,793,722,874,134,528/15,135,907,786.42
  6. Step 6: Final answer
    x = 11,282,362,190.13

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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.