Home / 290,810,415.86-401,316,469.33-165,362,621.25

Finding the Fourth Proportional to 290,810,415.86, 401,316,469.33 and 165,362,621.25

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Solution

The fourth proportional to 290,810,415.86, 401,316,469.33 and 165,362,621.25 is: 228,199,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,810,415.86 : 401,316,469.33 = 165,362,621.25 : x
  2. Step 2: Convert to fraction form
    290,810,415.86/401,316,469.33 = 165,362,621.25/x
  3. Step 3: Cross multiply
    290,810,415.86x = 401,316,469.33 × 165,362,621.25
  4. Step 4: Simplify right side
    290,810,415.86x = 66,362,743,318,377,216
  5. Step 5: Solve for x
    x = 66,362,743,318,377,216/290,810,415.86
  6. Step 6: Final answer
    x = 228,199,334.34

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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.