Finding the Fourth Proportional to 18,355,386.80, 27,540,953.40 and 9,379,938.80
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Solution
The fourth proportional to 18,355,386.80, 27,540,953.40 and 9,379,938.80 is: 14,073,931.55
Step by Step Solution
- Step 1: Write the proportion equation
18,355,386.80 : 27,540,953.40 = 9,379,938.80 : x - Step 2: Convert to fraction form
18,355,386.80/27,540,953.40 = 9,379,938.80/x - Step 3: Cross multiply
18,355,386.80x = 27,540,953.40 × 9,379,938.80 - Step 4: Simplify right side
18,355,386.80x = 258,332,457,385,651.94 - Step 5: Solve for x
x = 258,332,457,385,651.94/18,355,386.80 - Step 6: Final answer
x = 14,073,931.55
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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.