Home / 494,719,142.49-742,078,087.06-126,254,103.01

Finding the Fourth Proportional to 494,719,142.49, 742,078,087.06 and 126,254,103.01

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Solution

The fourth proportional to 494,719,142.49, 742,078,087.06 and 126,254,103.01 is: 189,380,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,719,142.49 : 742,078,087.06 = 126,254,103.01 : x
  2. Step 2: Convert to fraction form
    494,719,142.49/742,078,087.06 = 126,254,103.01/x
  3. Step 3: Cross multiply
    494,719,142.49x = 742,078,087.06 × 126,254,103.01
  4. Step 4: Simplify right side
    494,719,142.49x = 93,690,403,247,383,936
  5. Step 5: Solve for x
    x = 93,690,403,247,383,936/494,719,142.49
  6. Step 6: Final answer
    x = 189,380,994.59

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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.