Home / 402,408,010.20-603,612,015.30-329,706,881.40

Finding the Fourth Proportional to 402,408,010.20, 603,612,015.30 and 329,706,881.40

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Solution

The fourth proportional to 402,408,010.20, 603,612,015.30 and 329,706,881.40 is: 494,560,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,010.20 : 603,612,015.30 = 329,706,881.40 : x
  2. Step 2: Convert to fraction form
    402,408,010.20/603,612,015.30 = 329,706,881.40/x
  3. Step 3: Cross multiply
    402,408,010.20x = 603,612,015.30 × 329,706,881.40
  4. Step 4: Simplify right side
    402,408,010.20x = 199,015,035,140,132,064
  5. Step 5: Solve for x
    x = 199,015,035,140,132,064/402,408,010.20
  6. Step 6: Final answer
    x = 494,560,322.10

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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.