Finding the Fourth Proportional to 7,884,955.20, 11,831,369.40 and 4,475,859.60
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Solution
The fourth proportional to 7,884,955.20, 11,831,369.40 and 4,475,859.60 is: 6,716,023.99
Step by Step Solution
- Step 1: Write the proportion equation
7,884,955.20 : 11,831,369.40 = 4,475,859.60 : x - Step 2: Convert to fraction form
7,884,955.20/11,831,369.40 = 4,475,859.60/x - Step 3: Cross multiply
7,884,955.20x = 11,831,369.40 × 4,475,859.60 - Step 4: Simplify right side
7,884,955.20x = 52,955,548,310,136.23 - Step 5: Solve for x
x = 52,955,548,310,136.23/7,884,955.20 - Step 6: Final answer
x = 6,716,023.99
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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.