Home / 585,082,021.05-807,412,994.24-320,758,338.83

Finding the Fourth Proportional to 585,082,021.05, 807,412,994.24 and 320,758,338.83

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Solution

The fourth proportional to 585,082,021.05, 807,412,994.24 and 320,758,338.83 is: 442,646,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,082,021.05 : 807,412,994.24 = 320,758,338.83 : x
  2. Step 2: Convert to fraction form
    585,082,021.05/807,412,994.24 = 320,758,338.83/x
  3. Step 3: Cross multiply
    585,082,021.05x = 807,412,994.24 × 320,758,338.83
  4. Step 4: Simplify right side
    585,082,021.05x = 258,984,450,776,537,888
  5. Step 5: Solve for x
    x = 258,984,450,776,537,888/585,082,021.05
  6. Step 6: Final answer
    x = 442,646,400.78

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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.