Finding the Fourth Proportional to 18,966,622.60, 28,365,953.10 and 15,943,313.80
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Solution
The fourth proportional to 18,966,622.60, 28,365,953.10 and 15,943,313.80 is: 23,844,376.57
Step by Step Solution
- Step 1: Write the proportion equation
18,966,622.60 : 28,365,953.10 = 15,943,313.80 : x - Step 2: Convert to fraction form
18,966,622.60/28,365,953.10 = 15,943,313.80/x - Step 3: Cross multiply
18,966,622.60x = 28,365,953.10 × 15,943,313.80 - Step 4: Simplify right side
18,966,622.60x = 452,247,291,509,382.81 - Step 5: Solve for x
x = 452,247,291,509,382.81/18,966,622.60 - Step 6: Final answer
x = 23,844,376.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.