Home / 290,872,499.70-436,308,749.55-225,824,121.30

Finding the Fourth Proportional to 290,872,499.70, 436,308,749.55 and 225,824,121.30

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Solution

The fourth proportional to 290,872,499.70, 436,308,749.55 and 225,824,121.30 is: 338,736,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,872,499.70 : 436,308,749.55 = 225,824,121.30 : x
  2. Step 2: Convert to fraction form
    290,872,499.70/436,308,749.55 = 225,824,121.30/x
  3. Step 3: Cross multiply
    290,872,499.70x = 436,308,749.55 × 225,824,121.30
  4. Step 4: Simplify right side
    290,872,499.70x = 98,529,039,982,630,528
  5. Step 5: Solve for x
    x = 98,529,039,982,630,528/290,872,499.70
  6. Step 6: Final answer
    x = 338,736,181.95

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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.