Home / 300,389,653.04-449,777,189.51-190,620,514.49

Finding the Fourth Proportional to 300,389,653.04, 449,777,189.51 and 190,620,514.49

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Solution

The fourth proportional to 300,389,653.04, 449,777,189.51 and 190,620,514.49 is: 285,418,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,389,653.04 : 449,777,189.51 = 190,620,514.49 : x
  2. Step 2: Convert to fraction form
    300,389,653.04/449,777,189.51 = 190,620,514.49/x
  3. Step 3: Cross multiply
    300,389,653.04x = 449,777,189.51 × 190,620,514.49
  4. Step 4: Simplify right side
    300,389,653.04x = 85,736,759,267,775,280
  5. Step 5: Solve for x
    x = 85,736,759,267,775,280/300,389,653.04
  6. Step 6: Final answer
    x = 285,418,483.63

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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.