Finding the Fourth Proportional to 8,122,865.67, 11,203,097.58 and 6,903,208.58
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Solution
The fourth proportional to 8,122,865.67, 11,203,097.58 and 6,903,208.58 is: 9,520,940.32
Step by Step Solution
- Step 1: Write the proportion equation
8,122,865.67 : 11,203,097.58 = 6,903,208.58 : x - Step 2: Convert to fraction form
8,122,865.67/11,203,097.58 = 6,903,208.58/x - Step 3: Cross multiply
8,122,865.67x = 11,203,097.58 × 6,903,208.58 - Step 4: Simplify right side
8,122,865.67x = 77,337,319,280,817.75 - Step 5: Solve for x
x = 77,337,319,280,817.75/8,122,865.67 - Step 6: Final answer
x = 9,520,940.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.