Home / 405,653,020.55-605,068,950.81-368,412,982.73

Finding the Fourth Proportional to 405,653,020.55, 605,068,950.81 and 368,412,982.73

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Solution

The fourth proportional to 405,653,020.55, 605,068,950.81 and 368,412,982.73 is: 549,521,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,653,020.55 : 605,068,950.81 = 368,412,982.73 : x
  2. Step 2: Convert to fraction form
    405,653,020.55/605,068,950.81 = 368,412,982.73/x
  3. Step 3: Cross multiply
    405,653,020.55x = 605,068,950.81 × 368,412,982.73
  4. Step 4: Simplify right side
    405,653,020.55x = 222,915,256,922,198,400
  5. Step 5: Solve for x
    x = 222,915,256,922,198,400/405,653,020.55
  6. Step 6: Final answer
    x = 549,521,994.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.