Home / 28,066,511.80-42,099,767.70-15,311,927.80

Finding the Fourth Proportional to 28,066,511.80, 42,099,767.70 and 15,311,927.80

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Solution

The fourth proportional to 28,066,511.80, 42,099,767.70 and 15,311,927.80 is: 22,967,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,511.80 : 42,099,767.70 = 15,311,927.80 : x
  2. Step 2: Convert to fraction form
    28,066,511.80/42,099,767.70 = 15,311,927.80/x
  3. Step 3: Cross multiply
    28,066,511.80x = 42,099,767.70 × 15,311,927.80
  4. Step 4: Simplify right side
    28,066,511.80x = 644,628,603,419,172.12
  5. Step 5: Solve for x
    x = 644,628,603,419,172.12/28,066,511.80
  6. Step 6: Final answer
    x = 22,967,891.70

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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.