Finding the Fourth Proportional to 72,515,823.36, 108,880,940.16 and 48,404,970.24
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Solution
The fourth proportional to 72,515,823.36, 108,880,940.16 and 48,404,970.24 is: 72,679,015.75
Step by Step Solution
- Step 1: Write the proportion equation
72,515,823.36 : 108,880,940.16 = 48,404,970.24 : x - Step 2: Convert to fraction form
72,515,823.36/108,880,940.16 = 48,404,970.24/x - Step 3: Cross multiply
72,515,823.36x = 108,880,940.16 × 48,404,970.24 - Step 4: Simplify right side
72,515,823.36x = 5,270,378,668,148,021 - Step 5: Solve for x
x = 5,270,378,668,148,021/72,515,823.36 - Step 6: Final answer
x = 72,679,015.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.