Finding the Fourth Proportional to 7,721,436.92, 10,656,527.94 and 4,458,246.21
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Solution
The fourth proportional to 7,721,436.92, 10,656,527.94 and 4,458,246.21 is: 6,152,925.40
Step by Step Solution
- Step 1: Write the proportion equation
7,721,436.92 : 10,656,527.94 = 4,458,246.21 : x - Step 2: Convert to fraction form
7,721,436.92/10,656,527.94 = 4,458,246.21/x - Step 3: Cross multiply
7,721,436.92x = 10,656,527.94 × 4,458,246.21 - Step 4: Simplify right side
7,721,436.92x = 47,509,425,300,264.10 - Step 5: Solve for x
x = 47,509,425,300,264.10/7,721,436.92 - Step 6: Final answer
x = 6,152,925.40
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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.