Finding the Fourth Proportional to 19,753,785.73, 29,778,737.28 and 18,436,993.03
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Solution
The fourth proportional to 19,753,785.73, 29,778,737.28 and 18,436,993.03 is: 27,793,678.60
Step by Step Solution
- Step 1: Write the proportion equation
19,753,785.73 : 29,778,737.28 = 18,436,993.03 : x - Step 2: Convert to fraction form
19,753,785.73/29,778,737.28 = 18,436,993.03/x - Step 3: Cross multiply
19,753,785.73x = 29,778,737.28 × 18,436,993.03 - Step 4: Simplify right side
19,753,785.73x = 549,030,371,673,561.19 - Step 5: Solve for x
x = 549,030,371,673,561.19/19,753,785.73 - Step 6: Final answer
x = 27,793,678.60
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.