Finding the Fourth Proportional to 13,537,834.48, 18,682,037.40 and 7,736,549.68
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Solution
The fourth proportional to 13,537,834.48, 18,682,037.40 and 7,736,549.68 is: 10,676,339.02
Step by Step Solution
- Step 1: Write the proportion equation
13,537,834.48 : 18,682,037.40 = 7,736,549.68 : x - Step 2: Convert to fraction form
13,537,834.48/18,682,037.40 = 7,736,549.68/x - Step 3: Cross multiply
13,537,834.48x = 18,682,037.40 × 7,736,549.68 - Step 4: Simplify right side
13,537,834.48x = 144,534,510,468,718 - Step 5: Solve for x
x = 144,534,510,468,718/13,537,834.48 - Step 6: Final answer
x = 10,676,339.02
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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.