Home / 151,607,198.19-209,218,073.01-81,992,579.07

Finding the Fourth Proportional to 151,607,198.19, 209,218,073.01 and 81,992,579.07

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Solution

The fourth proportional to 151,607,198.19, 209,218,073.01 and 81,992,579.07 is: 113,149,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,607,198.19 : 209,218,073.01 = 81,992,579.07 : x
  2. Step 2: Convert to fraction form
    151,607,198.19/209,218,073.01 = 81,992,579.07/x
  3. Step 3: Cross multiply
    151,607,198.19x = 209,218,073.01 × 81,992,579.07
  4. Step 4: Simplify right side
    151,607,198.19x = 17,154,329,394,623,374
  5. Step 5: Solve for x
    x = 17,154,329,394,623,374/151,607,198.19
  6. Step 6: Final answer
    x = 113,149,834.57

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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.