Home / 28,169,783.85-42,260,738.01-8,738,622.57

Finding the Fourth Proportional to 28,169,783.85, 42,260,738.01 and 8,738,622.57

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Solution

The fourth proportional to 28,169,783.85, 42,260,738.01 and 8,738,622.57 is: 13,109,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,783.85 : 42,260,738.01 = 8,738,622.57 : x
  2. Step 2: Convert to fraction form
    28,169,783.85/42,260,738.01 = 8,738,622.57/x
  3. Step 3: Cross multiply
    28,169,783.85x = 42,260,738.01 × 8,738,622.57
  4. Step 4: Simplify right side
    28,169,783.85x = 369,300,638,999,042.88
  5. Step 5: Solve for x
    x = 369,300,638,999,042.88/28,169,783.85
  6. Step 6: Final answer
    x = 13,109,814.44

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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.