Finding the Fourth Proportional to 20,132,734.74, 27,785,916.45 and 11,875,129.62
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Solution
The fourth proportional to 20,132,734.74, 27,785,916.45 and 11,875,129.62 is: 16,389,296.52
Step by Step Solution
- Step 1: Write the proportion equation
20,132,734.74 : 27,785,916.45 = 11,875,129.62 : x - Step 2: Convert to fraction form
20,132,734.74/27,785,916.45 = 11,875,129.62/x - Step 3: Cross multiply
20,132,734.74x = 27,785,916.45 × 11,875,129.62 - Step 4: Simplify right side
20,132,734.74x = 329,961,359,454,240.19 - Step 5: Solve for x
x = 329,961,359,454,240.19/20,132,734.74 - Step 6: Final answer
x = 16,389,296.52
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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.