Finding the Fourth Proportional to 5,368,534.16, 7,405,753.94 and 3,191,528.76
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Solution
The fourth proportional to 5,368,534.16, 7,405,753.94 and 3,191,528.76 is: 4,402,631.33
Step by Step Solution
- Step 1: Write the proportion equation
5,368,534.16 : 7,405,753.94 = 3,191,528.76 : x - Step 2: Convert to fraction form
5,368,534.16/7,405,753.94 = 3,191,528.76/x - Step 3: Cross multiply
5,368,534.16x = 7,405,753.94 × 3,191,528.76 - Step 4: Simplify right side
5,368,534.16x = 23,635,676,688,993.31 - Step 5: Solve for x
x = 23,635,676,688,993.31/5,368,534.16 - Step 6: Final answer
x = 4,402,631.33
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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.