Finding the Fourth Proportional to 12,620,533.18, 17,445,756.63 and 11,257,386.88
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Solution
The fourth proportional to 12,620,533.18, 17,445,756.63 and 11,257,386.88 is: 15,561,436.99
Step by Step Solution
- Step 1: Write the proportion equation
12,620,533.18 : 17,445,756.63 = 11,257,386.88 : x - Step 2: Convert to fraction form
12,620,533.18/17,445,756.63 = 11,257,386.88/x - Step 3: Cross multiply
12,620,533.18x = 17,445,756.63 × 11,257,386.88 - Step 4: Simplify right side
12,620,533.18x = 196,393,631,798,235.03 - Step 5: Solve for x
x = 196,393,631,798,235.03/12,620,533.18 - Step 6: Final answer
x = 15,561,436.99
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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.