Finding the Fourth Proportional to 13,182,024.58, 18,190,391.40 and 7,301,310.18
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Solution
The fourth proportional to 13,182,024.58, 18,190,391.40 and 7,301,310.18 is: 10,075,363.55
Step by Step Solution
- Step 1: Write the proportion equation
13,182,024.58 : 18,190,391.40 = 7,301,310.18 : x - Step 2: Convert to fraction form
13,182,024.58/18,190,391.40 = 7,301,310.18/x - Step 3: Cross multiply
13,182,024.58x = 18,190,391.40 × 7,301,310.18 - Step 4: Simplify right side
13,182,024.58x = 132,813,689,907,004.44 - Step 5: Solve for x
x = 132,813,689,907,004.44/13,182,024.58 - Step 6: Final answer
x = 10,075,363.55
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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.