Home / 147,821,436.72-203,994,902.64-81,746,406

Finding the Fourth Proportional to 147,821,436.72, 203,994,902.64 and 81,746,406

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Solution

The fourth proportional to 147,821,436.72, 203,994,902.64 and 81,746,406 is: 112,810,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,821,436.72 : 203,994,902.64 = 81,746,406 : x
  2. Step 2: Convert to fraction form
    147,821,436.72/203,994,902.64 = 81,746,406/x
  3. Step 3: Cross multiply
    147,821,436.72x = 203,994,902.64 × 81,746,406
  4. Step 4: Simplify right side
    147,821,436.72x = 16,675,850,133,139,910
  5. Step 5: Solve for x
    x = 16,675,850,133,139,910/147,821,436.72
  6. Step 6: Final answer
    x = 112,810,770.23

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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.