Finding the Fourth Proportional to 194,488,197.67, 268,390,554.78 and 106,381,424.67
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Solution
The fourth proportional to 194,488,197.67, 268,390,554.78 and 106,381,424.67 is: 146,804,638.67
Step by Step Solution
- Step 1: Write the proportion equation
194,488,197.67 : 268,390,554.78 = 106,381,424.67 : x - Step 2: Convert to fraction form
194,488,197.67/268,390,554.78 = 106,381,424.67/x - Step 3: Cross multiply
194,488,197.67x = 268,390,554.78 × 106,381,424.67 - Step 4: Simplify right side
194,488,197.67x = 28,551,769,585,468,080 - Step 5: Solve for x
x = 28,551,769,585,468,080/194,488,197.67 - Step 6: Final answer
x = 146,804,638.67
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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.