Home / 290,414,816.30-435,699,206.85-126,582,272.30

Finding the Fourth Proportional to 290,414,816.30, 435,699,206.85 and 126,582,272.30

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Solution

The fourth proportional to 290,414,816.30, 435,699,206.85 and 126,582,272.30 is: 189,906,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,414,816.30 : 435,699,206.85 = 126,582,272.30 : x
  2. Step 2: Convert to fraction form
    290,414,816.30/435,699,206.85 = 126,582,272.30/x
  3. Step 3: Cross multiply
    290,414,816.30x = 435,699,206.85 × 126,582,272.30
  4. Step 4: Simplify right side
    290,414,816.30x = 55,151,795,642,380,728
  5. Step 5: Solve for x
    x = 55,151,795,642,380,728/290,414,816.30
  6. Step 6: Final answer
    x = 189,906,962.55

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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.