Finding the Fourth Proportional to 8,913,846.29, 12,312,646.79 and 7,371,338.58
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Solution
The fourth proportional to 8,913,846.29, 12,312,646.79 and 7,371,338.58 is: 10,181,989.39
Step by Step Solution
- Step 1: Write the proportion equation
8,913,846.29 : 12,312,646.79 = 7,371,338.58 : x - Step 2: Convert to fraction form
8,913,846.29/12,312,646.79 = 7,371,338.58/x - Step 3: Cross multiply
8,913,846.29x = 12,312,646.79 × 7,371,338.58 - Step 4: Simplify right side
8,913,846.29x = 90,760,688,268,183.47 - Step 5: Solve for x
x = 90,760,688,268,183.47/8,913,846.29 - Step 6: Final answer
x = 10,181,989.39
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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.