Finding the Fourth Proportional to 2,166,653.07, 2,990,946.87 and 1,432,049.79
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Solution
The fourth proportional to 2,166,653.07, 2,990,946.87 and 1,432,049.79 is: 1,976,866.95
Step by Step Solution
- Step 1: Write the proportion equation
2,166,653.07 : 2,990,946.87 = 1,432,049.79 : x - Step 2: Convert to fraction form
2,166,653.07/2,990,946.87 = 1,432,049.79/x - Step 3: Cross multiply
2,166,653.07x = 2,990,946.87 × 1,432,049.79 - Step 4: Simplify right side
2,166,653.07x = 4,283,184,848,300.71 - Step 5: Solve for x
x = 4,283,184,848,300.71/2,166,653.07 - Step 6: Final answer
x = 1,976,866.95
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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.