Finding the Fourth Proportional to 472,394,715.70, 708,592,073.55 and 165,576,111.70
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Solution
The fourth proportional to 472,394,715.70, 708,592,073.55 and 165,576,111.70 is: 248,364,167.55
Step by Step Solution
- Step 1: Write the proportion equation
472,394,715.70 : 708,592,073.55 = 165,576,111.70 : x - Step 2: Convert to fraction form
472,394,715.70/708,592,073.55 = 165,576,111.70/x - Step 3: Cross multiply
472,394,715.70x = 708,592,073.55 × 165,576,111.70 - Step 4: Simplify right side
472,394,715.70x = 117,325,920,319,849,392 - Step 5: Solve for x
x = 117,325,920,319,849,392/472,394,715.70 - Step 6: Final answer
x = 248,364,167.55
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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.