Finding the Fourth Proportional to 12,316,745.76, 16,996,420.08 and 6,809,799.84
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Solution
The fourth proportional to 12,316,745.76, 16,996,420.08 and 6,809,799.84 is: 9,397,142.80
Step by Step Solution
- Step 1: Write the proportion equation
12,316,745.76 : 16,996,420.08 = 6,809,799.84 : x - Step 2: Convert to fraction form
12,316,745.76/16,996,420.08 = 6,809,799.84/x - Step 3: Cross multiply
12,316,745.76x = 16,996,420.08 × 6,809,799.84 - Step 4: Simplify right side
12,316,745.76x = 115,742,218,741,356.77 - Step 5: Solve for x
x = 115,742,218,741,356.77/12,316,745.76 - Step 6: Final answer
x = 9,397,142.80
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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.