Home / 15,259,462,032.42-21,058,075,062.72-8,485,135,164.45

Finding the Fourth Proportional to 15,259,462,032.42, 21,058,075,062.72 and 8,485,135,164.45

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Solution

The fourth proportional to 15,259,462,032.42, 21,058,075,062.72 and 8,485,135,164.45 is: 11,709,496,234.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259,462,032.42 : 21,058,075,062.72 = 8,485,135,164.45 : x
  2. Step 2: Convert to fraction form
    15,259,462,032.42/21,058,075,062.72 = 8,485,135,164.45/x
  3. Step 3: Cross multiply
    15,259,462,032.42x = 21,058,075,062.72 × 8,485,135,164.45
  4. Step 4: Simplify right side
    15,259,462,032.42x = 178,680,613,210,313,129,984
  5. Step 5: Solve for x
    x = 178,680,613,210,313,129,984/15,259,462,032.42
  6. Step 6: Final answer
    x = 11,709,496,234.58

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Double scale
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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.