Finding the Fourth Proportional to 90,388,102.68, 124,734,695.58 and 49,132,540.44
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Solution
The fourth proportional to 90,388,102.68, 124,734,695.58 and 49,132,540.44 is: 67,802,424.14
Step by Step Solution
- Step 1: Write the proportion equation
90,388,102.68 : 124,734,695.58 = 49,132,540.44 : x - Step 2: Convert to fraction form
90,388,102.68/124,734,695.58 = 49,132,540.44/x - Step 3: Cross multiply
90,388,102.68x = 124,734,695.58 × 49,132,540.44 - Step 4: Simplify right side
90,388,102.68x = 6,128,532,474,855,439 - Step 5: Solve for x
x = 6,128,532,474,855,439/90,388,102.68 - Step 6: Final answer
x = 67,802,424.14
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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.