Finding the Fourth Proportional to 8,312,309.62, 11,471,696.21 and 4,641,935.15
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Solution
The fourth proportional to 8,312,309.62, 11,471,696.21 and 4,641,935.15 is: 6,406,266.41
Step by Step Solution
- Step 1: Write the proportion equation
8,312,309.62 : 11,471,696.21 = 4,641,935.15 : x - Step 2: Convert to fraction form
8,312,309.62/11,471,696.21 = 4,641,935.15/x - Step 3: Cross multiply
8,312,309.62x = 11,471,696.21 × 4,641,935.15 - Step 4: Simplify right side
8,312,309.62x = 53,250,869,867,320.79 - Step 5: Solve for x
x = 53,250,869,867,320.79/8,312,309.62 - Step 6: Final answer
x = 6,406,266.41
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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.