Finding the Fourth Proportional to 21,292,585.92, 31,948,028.64 and 6,920,058.24
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Solution
The fourth proportional to 21,292,585.92, 31,948,028.64 and 6,920,058.24 is: 10,383,061.02
Step by Step Solution
- Step 1: Write the proportion equation
21,292,585.92 : 31,948,028.64 = 6,920,058.24 : x - Step 2: Convert to fraction form
21,292,585.92/31,948,028.64 = 6,920,058.24/x - Step 3: Cross multiply
21,292,585.92x = 31,948,028.64 × 6,920,058.24 - Step 4: Simplify right side
21,292,585.92x = 221,082,218,841,988 - Step 5: Solve for x
x = 221,082,218,841,988/21,292,585.92 - Step 6: Final answer
x = 10,383,061.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.