Finding the Fourth Proportional to 20,226,919.01, 27,920,738.73 and 13,258,045.53
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Solution
The fourth proportional to 20,226,919.01, 27,920,738.73 and 13,258,045.53 is: 18,301,078.14
Step by Step Solution
- Step 1: Write the proportion equation
20,226,919.01 : 27,920,738.73 = 13,258,045.53 : x - Step 2: Convert to fraction form
20,226,919.01/27,920,738.73 = 13,258,045.53/x - Step 3: Cross multiply
20,226,919.01x = 27,920,738.73 × 13,258,045.53 - Step 4: Simplify right side
20,226,919.01x = 370,174,425,313,574.38 - Step 5: Solve for x
x = 370,174,425,313,574.38/20,226,919.01 - Step 6: Final answer
x = 18,301,078.14
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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.