Finding the Fourth Proportional to 219,654,718.71, 303,128,142.69 and 120,534,599.08
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Solution
The fourth proportional to 219,654,718.71, 303,128,142.69 and 120,534,599.08 is: 166,340,287.90
Step by Step Solution
- Step 1: Write the proportion equation
219,654,718.71 : 303,128,142.69 = 120,534,599.08 : x - Step 2: Convert to fraction form
219,654,718.71/303,128,142.69 = 120,534,599.08/x - Step 3: Cross multiply
219,654,718.71x = 303,128,142.69 × 120,534,599.08 - Step 4: Simplify right side
219,654,718.71x = 36,537,429,149,004,184 - Step 5: Solve for x
x = 36,537,429,149,004,184/219,654,718.71 - Step 6: Final answer
x = 166,340,287.90
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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.