Home / 455,072,029.94-627,998,994.93-256,875,243.38

Finding the Fourth Proportional to 455,072,029.94, 627,998,994.93 and 256,875,243.38

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Solution

The fourth proportional to 455,072,029.94, 627,998,994.93 and 256,875,243.38 is: 354,487,606.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,072,029.94 : 627,998,994.93 = 256,875,243.38 : x
  2. Step 2: Convert to fraction form
    455,072,029.94/627,998,994.93 = 256,875,243.38/x
  3. Step 3: Cross multiply
    455,072,029.94x = 627,998,994.93 × 256,875,243.38
  4. Step 4: Simplify right side
    455,072,029.94x = 161,317,394,665,039,104
  5. Step 5: Solve for x
    x = 161,317,394,665,039,104/455,072,029.94
  6. Step 6: Final answer
    x = 354,487,606.47

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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.