Finding the Fourth Proportional to 48,143,621.73, 66,438,197.99 and 27,517,510.78
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Solution
The fourth proportional to 48,143,621.73, 66,438,197.99 and 27,517,510.78 is: 37,974,164.88
Step by Step Solution
- Step 1: Write the proportion equation
48,143,621.73 : 66,438,197.99 = 27,517,510.78 : x - Step 2: Convert to fraction form
48,143,621.73/66,438,197.99 = 27,517,510.78/x - Step 3: Cross multiply
48,143,621.73x = 66,438,197.99 × 27,517,510.78 - Step 4: Simplify right side
48,143,621.73x = 1,828,213,829,393,599.50 - Step 5: Solve for x
x = 1,828,213,829,393,599.50/48,143,621.73 - Step 6: Final answer
x = 37,974,164.88
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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.