Home / 279,937,220.20-419,905,830.30-210,401,117.80

Finding the Fourth Proportional to 279,937,220.20, 419,905,830.30 and 210,401,117.80

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Solution

The fourth proportional to 279,937,220.20, 419,905,830.30 and 210,401,117.80 is: 315,601,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,220.20 : 419,905,830.30 = 210,401,117.80 : x
  2. Step 2: Convert to fraction form
    279,937,220.20/419,905,830.30 = 210,401,117.80/x
  3. Step 3: Cross multiply
    279,937,220.20x = 419,905,830.30 × 210,401,117.80
  4. Step 4: Simplify right side
    279,937,220.20x = 88,348,656,065,857,120
  5. Step 5: Solve for x
    x = 88,348,656,065,857,120/279,937,220.20
  6. Step 6: Final answer
    x = 315,601,676.70

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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.