Home / 405,653,021.05-605,068,951.55-368,412,983.22

Finding the Fourth Proportional to 405,653,021.05, 605,068,951.55 and 368,412,983.22

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Solution

The fourth proportional to 405,653,021.05, 605,068,951.55 and 368,412,983.22 is: 549,521,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,653,021.05 : 605,068,951.55 = 368,412,983.22 : x
  2. Step 2: Convert to fraction form
    405,653,021.05/605,068,951.55 = 368,412,983.22/x
  3. Step 3: Cross multiply
    405,653,021.05x = 605,068,951.55 × 368,412,983.22
  4. Step 4: Simplify right side
    405,653,021.05x = 222,915,257,494,333,152
  5. Step 5: Solve for x
    x = 222,915,257,494,333,152/405,653,021.05
  6. Step 6: Final answer
    x = 549,521,995.22

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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.