Finding the Fourth Proportional to 11,720,269.68, 16,161,646.68 and 8,670,833.52
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Solution
The fourth proportional to 11,720,269.68, 16,161,646.68 and 8,670,833.52 is: 11,956,631.68
Step by Step Solution
- Step 1: Write the proportion equation
11,720,269.68 : 16,161,646.68 = 8,670,833.52 : x - Step 2: Convert to fraction form
11,720,269.68/16,161,646.68 = 8,670,833.52/x - Step 3: Cross multiply
11,720,269.68x = 16,161,646.68 × 8,670,833.52 - Step 4: Simplify right side
11,720,269.68x = 140,134,947,771,340.70 - Step 5: Solve for x
x = 140,134,947,771,340.70/11,720,269.68 - Step 6: Final answer
x = 11,956,631.68
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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.