Home / 151,607,356.89-209,218,292.25-81,992,737.85

Finding the Fourth Proportional to 151,607,356.89, 209,218,292.25 and 81,992,737.85

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Solution

The fourth proportional to 151,607,356.89, 209,218,292.25 and 81,992,737.85 is: 113,150,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,607,356.89 : 209,218,292.25 = 81,992,737.85 : x
  2. Step 2: Convert to fraction form
    151,607,356.89/209,218,292.25 = 81,992,737.85/x
  3. Step 3: Cross multiply
    151,607,356.89x = 209,218,292.25 × 81,992,737.85
  4. Step 4: Simplify right side
    151,607,356.89x = 17,154,380,589,878,936
  5. Step 5: Solve for x
    x = 17,154,380,589,878,936/151,607,356.89
  6. Step 6: Final answer
    x = 113,150,053.81

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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.