Finding the Fourth Proportional to 6,390,382.94, 8,812,742.33 and 5,087,934.44
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Solution
The fourth proportional to 6,390,382.94, 8,812,742.33 and 5,087,934.44 is: 7,016,583.45
Step by Step Solution
- Step 1: Write the proportion equation
6,390,382.94 : 8,812,742.33 = 5,087,934.44 : x - Step 2: Convert to fraction form
6,390,382.94/8,812,742.33 = 5,087,934.44/x - Step 3: Cross multiply
6,390,382.94x = 8,812,742.33 × 5,087,934.44 - Step 4: Simplify right side
6,390,382.94x = 44,838,655,142,149.45 - Step 5: Solve for x
x = 44,838,655,142,149.45/6,390,382.94 - Step 6: Final answer
x = 7,016,583.45
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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.