Home / 279,676,877.20-419,515,315.80-221,856,096.40

Finding the Fourth Proportional to 279,676,877.20, 419,515,315.80 and 221,856,096.40

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Solution

The fourth proportional to 279,676,877.20, 419,515,315.80 and 221,856,096.40 is: 332,784,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,676,877.20 : 419,515,315.80 = 221,856,096.40 : x
  2. Step 2: Convert to fraction form
    279,676,877.20/419,515,315.80 = 221,856,096.40/x
  3. Step 3: Cross multiply
    279,676,877.20x = 419,515,315.80 × 221,856,096.40
  4. Step 4: Simplify right side
    279,676,877.20x = 93,072,030,343,401,248
  5. Step 5: Solve for x
    x = 93,072,030,343,401,248/279,676,877.20
  6. Step 6: Final answer
    x = 332,784,144.60

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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.