Finding the Fourth Proportional to 18,202,599.78, 27,307,837.08 and 5,424,133.74
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Solution
The fourth proportional to 18,202,599.78, 27,307,837.08 and 5,424,133.74 is: 8,137,373.91
Step by Step Solution
- Step 1: Write the proportion equation
18,202,599.78 : 27,307,837.08 = 5,424,133.74 : x - Step 2: Convert to fraction form
18,202,599.78/27,307,837.08 = 5,424,133.74/x - Step 3: Cross multiply
18,202,599.78x = 27,307,837.08 × 5,424,133.74 - Step 4: Simplify right side
18,202,599.78x = 148,121,360,472,051.06 - Step 5: Solve for x
x = 148,121,360,472,051.06/18,202,599.78 - Step 6: Final answer
x = 8,137,373.91
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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.