Home / 290,993,155.81-436,485,623.20-135,459,972

Finding the Fourth Proportional to 290,993,155.81, 436,485,623.20 and 135,459,972

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Solution

The fourth proportional to 290,993,155.81, 436,485,623.20 and 135,459,972 is: 203,188,044.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,993,155.81 : 436,485,623.20 = 135,459,972 : x
  2. Step 2: Convert to fraction form
    290,993,155.81/436,485,623.20 = 135,459,972/x
  3. Step 3: Cross multiply
    290,993,155.81x = 436,485,623.20 × 135,459,972
  4. Step 4: Simplify right side
    290,993,155.81x = 59,126,330,296,735,896
  5. Step 5: Solve for x
    x = 59,126,330,296,735,896/290,993,155.81
  6. Step 6: Final answer
    x = 203,188,044.52

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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.