Finding the Fourth Proportional to 13,329,880.56, 18,395,230.68 and 7,218,307.44
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Solution
The fourth proportional to 13,329,880.56, 18,395,230.68 and 7,218,307.44 is: 9,961,261.83
Step by Step Solution
- Step 1: Write the proportion equation
13,329,880.56 : 18,395,230.68 = 7,218,307.44 : x - Step 2: Convert to fraction form
13,329,880.56/18,395,230.68 = 7,218,307.44/x - Step 3: Cross multiply
13,329,880.56x = 18,395,230.68 × 7,218,307.44 - Step 4: Simplify right side
13,329,880.56x = 132,782,430,477,960.27 - Step 5: Solve for x
x = 132,782,430,477,960.27/13,329,880.56 - Step 6: Final answer
x = 9,961,261.83
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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.