Home / 419,328,428.20-628,992,642.30-296,884,421.80

Finding the Fourth Proportional to 419,328,428.20, 628,992,642.30 and 296,884,421.80

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Solution

The fourth proportional to 419,328,428.20, 628,992,642.30 and 296,884,421.80 is: 445,326,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,328,428.20 : 628,992,642.30 = 296,884,421.80 : x
  2. Step 2: Convert to fraction form
    419,328,428.20/628,992,642.30 = 296,884,421.80/x
  3. Step 3: Cross multiply
    419,328,428.20x = 628,992,642.30 × 296,884,421.80
  4. Step 4: Simplify right side
    419,328,428.20x = 186,738,116,925,689,728
  5. Step 5: Solve for x
    x = 186,738,116,925,689,728/419,328,428.20
  6. Step 6: Final answer
    x = 445,326,632.70

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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.