Finding the Fourth Proportional to 19,739,812.40, 29,609,718.60 and 6,278,001.20
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Solution
The fourth proportional to 19,739,812.40, 29,609,718.60 and 6,278,001.20 is: 9,417,001.80
Step by Step Solution
- Step 1: Write the proportion equation
19,739,812.40 : 29,609,718.60 = 6,278,001.20 : x - Step 2: Convert to fraction form
19,739,812.40/29,609,718.60 = 6,278,001.20/x - Step 3: Cross multiply
19,739,812.40x = 29,609,718.60 × 6,278,001.20 - Step 4: Simplify right side
19,739,812.40x = 185,889,848,902,462.34 - Step 5: Solve for x
x = 185,889,848,902,462.34/19,739,812.40 - Step 6: Final answer
x = 9,417,001.80
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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.