Home / 151,607,355.89-209,218,290.87-81,992,736.85

Finding the Fourth Proportional to 151,607,355.89, 209,218,290.87 and 81,992,736.85

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Solution

The fourth proportional to 151,607,355.89, 209,218,290.87 and 81,992,736.85 is: 113,150,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,607,355.89 : 209,218,290.87 = 81,992,736.85 : x
  2. Step 2: Convert to fraction form
    151,607,355.89/209,218,290.87 = 81,992,736.85/x
  3. Step 3: Cross multiply
    151,607,355.89x = 209,218,290.87 × 81,992,736.85
  4. Step 4: Simplify right side
    151,607,355.89x = 17,154,380,266,464,576
  5. Step 5: Solve for x
    x = 17,154,380,266,464,576/151,607,355.89
  6. Step 6: Final answer
    x = 113,150,052.42

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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.