Home / 442,368,019.20-663,552,028.80-200,503,315.20

Finding the Fourth Proportional to 442,368,019.20, 663,552,028.80 and 200,503,315.20

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Solution

The fourth proportional to 442,368,019.20, 663,552,028.80 and 200,503,315.20 is: 300,754,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,368,019.20 : 663,552,028.80 = 200,503,315.20 : x
  2. Step 2: Convert to fraction form
    442,368,019.20/663,552,028.80 = 200,503,315.20/x
  3. Step 3: Cross multiply
    442,368,019.20x = 663,552,028.80 × 200,503,315.20
  4. Step 4: Simplify right side
    442,368,019.20x = 133,044,381,582,085,856
  5. Step 5: Solve for x
    x = 133,044,381,582,085,856/442,368,019.20
  6. Step 6: Final answer
    x = 300,754,972.80

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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.