Finding the Fourth Proportional to 8,156,970.96, 11,256,395.25 and 4,485,887.15
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Solution
The fourth proportional to 8,156,970.96, 11,256,395.25 and 4,485,887.15 is: 6,190,400.70
Step by Step Solution
- Step 1: Write the proportion equation
8,156,970.96 : 11,256,395.25 = 4,485,887.15 : x - Step 2: Convert to fraction form
8,156,970.96/11,256,395.25 = 4,485,887.15/x - Step 3: Cross multiply
8,156,970.96x = 11,256,395.25 × 4,485,887.15 - Step 4: Simplify right side
8,156,970.96x = 50,494,918,751,014.05 - Step 5: Solve for x
x = 50,494,918,751,014.05/8,156,970.96 - Step 6: Final answer
x = 6,190,400.70
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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.