Home / 290,907,932.40-436,361,898.60-181,856,239.20

Finding the Fourth Proportional to 290,907,932.40, 436,361,898.60 and 181,856,239.20

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Solution

The fourth proportional to 290,907,932.40, 436,361,898.60 and 181,856,239.20 is: 272,784,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,907,932.40 : 436,361,898.60 = 181,856,239.20 : x
  2. Step 2: Convert to fraction form
    290,907,932.40/436,361,898.60 = 181,856,239.20/x
  3. Step 3: Cross multiply
    290,907,932.40x = 436,361,898.60 × 181,856,239.20
  4. Step 4: Simplify right side
    290,907,932.40x = 79,355,133,809,567,744
  5. Step 5: Solve for x
    x = 79,355,133,809,567,744/290,907,932.40
  6. Step 6: Final answer
    x = 272,784,358.80

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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.