Finding the Fourth Proportional to 90,388,103.68, 124,734,696.96 and 49,132,541.44
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Solution
The fourth proportional to 90,388,103.68, 124,734,696.96 and 49,132,541.44 is: 67,802,425.52
Step by Step Solution
- Step 1: Write the proportion equation
90,388,103.68 : 124,734,696.96 = 49,132,541.44 : x - Step 2: Convert to fraction form
90,388,103.68/124,734,696.96 = 49,132,541.44/x - Step 3: Cross multiply
90,388,103.68x = 124,734,696.96 × 49,132,541.44 - Step 4: Simplify right side
90,388,103.68x = 6,128,532,667,393,041 - Step 5: Solve for x
x = 6,128,532,667,393,041/90,388,103.68 - Step 6: Final answer
x = 67,802,425.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.