Finding the Fourth Proportional to 18,020,714.70, 27,028,447.65 and 5,239,886.70
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Solution
The fourth proportional to 18,020,714.70, 27,028,447.65 and 5,239,886.70 is: 7,859,066.95
Step by Step Solution
- Step 1: Write the proportion equation
18,020,714.70 : 27,028,447.65 = 5,239,886.70 : x - Step 2: Convert to fraction form
18,020,714.70/27,028,447.65 = 5,239,886.70/x - Step 3: Cross multiply
18,020,714.70x = 27,028,447.65 × 5,239,886.70 - Step 4: Simplify right side
18,020,714.70x = 141,626,003,362,881.25 - Step 5: Solve for x
x = 141,626,003,362,881.25/18,020,714.70 - Step 6: Final answer
x = 7,859,066.95
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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.