Home / 402,408,047.70-603,612,071.55-329,706,918.90

Finding the Fourth Proportional to 402,408,047.70, 603,612,071.55 and 329,706,918.90

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Solution

The fourth proportional to 402,408,047.70, 603,612,071.55 and 329,706,918.90 is: 494,560,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,047.70 : 603,612,071.55 = 329,706,918.90 : x
  2. Step 2: Convert to fraction form
    402,408,047.70/603,612,071.55 = 329,706,918.90/x
  3. Step 3: Cross multiply
    402,408,047.70x = 603,612,071.55 × 329,706,918.90
  4. Step 4: Simplify right side
    402,408,047.70x = 199,015,076,321,596,832
  5. Step 5: Solve for x
    x = 199,015,076,321,596,832/402,408,047.70
  6. Step 6: Final answer
    x = 494,560,378.35

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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.