Home / 290,810,416.86-401,316,470.70-165,362,622.25

Finding the Fourth Proportional to 290,810,416.86, 401,316,470.70 and 165,362,622.25

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Solution

The fourth proportional to 290,810,416.86, 401,316,470.70 and 165,362,622.25 is: 228,199,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,810,416.86 : 401,316,470.70 = 165,362,622.25 : x
  2. Step 2: Convert to fraction form
    290,810,416.86/401,316,470.70 = 165,362,622.25/x
  3. Step 3: Cross multiply
    290,810,416.86x = 401,316,470.70 × 165,362,622.25
  4. Step 4: Simplify right side
    290,810,416.86x = 66,362,743,947,067,288
  5. Step 5: Solve for x
    x = 66,362,743,947,067,288/290,810,416.86
  6. Step 6: Final answer
    x = 228,199,335.72

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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.