Home / 290,320,090.80-436,128,942.60-242,544,346.80

Finding the Fourth Proportional to 290,320,090.80, 436,128,942.60 and 242,544,346.80

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Solution

The fourth proportional to 290,320,090.80, 436,128,942.60 and 242,544,346.80 is: 364,358,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,320,090.80 : 436,128,942.60 = 242,544,346.80 : x
  2. Step 2: Convert to fraction form
    290,320,090.80/436,128,942.60 = 242,544,346.80/x
  3. Step 3: Cross multiply
    290,320,090.80x = 436,128,942.60 × 242,544,346.80
  4. Step 4: Simplify right side
    290,320,090.80x = 105,780,609,503,491,712
  5. Step 5: Solve for x
    x = 105,780,609,503,491,712/290,320,090.80
  6. Step 6: Final answer
    x = 364,358,557.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.