Finding the Fourth Proportional to 25,902,105.60, 38,864,044.80 and 13,920,844.80
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Solution
The fourth proportional to 25,902,105.60, 38,864,044.80 and 13,920,844.80 is: 20,887,117.99
Step by Step Solution
- Step 1: Write the proportion equation
25,902,105.60 : 38,864,044.80 = 13,920,844.80 : x - Step 2: Convert to fraction form
25,902,105.60/38,864,044.80 = 13,920,844.80/x - Step 3: Cross multiply
25,902,105.60x = 38,864,044.80 × 13,920,844.80 - Step 4: Simplify right side
25,902,105.60x = 541,020,335,961,047 - Step 5: Solve for x
x = 541,020,335,961,047/25,902,105.60 - Step 6: Final answer
x = 20,887,117.99
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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.