Finding the Fourth Proportional to 7,242,197.73, 9,990,076.52 and 4,521,219.81
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Solution
The fourth proportional to 7,242,197.73, 9,990,076.52 and 4,521,219.81 is: 6,236,688.58
Step by Step Solution
- Step 1: Write the proportion equation
7,242,197.73 : 9,990,076.52 = 4,521,219.81 : x - Step 2: Convert to fraction form
7,242,197.73/9,990,076.52 = 4,521,219.81/x - Step 3: Cross multiply
7,242,197.73x = 9,990,076.52 × 4,521,219.81 - Step 4: Simplify right side
7,242,197.73x = 45,167,331,843,033.76 - Step 5: Solve for x
x = 45,167,331,843,033.76/7,242,197.73 - Step 6: Final answer
x = 6,236,688.58
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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.