Finding the Fourth Proportional to 79,531,319,658.46, 109,753,192,138.84 and 43,402,352,168.38
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Solution
The fourth proportional to 79,531,319,658.46, 109,753,192,138.84 and 43,402,352,168.38 is: 59,895,230,171.84
Step by Step Solution
- Step 1: Write the proportion equation
79,531,319,658.46 : 109,753,192,138.84 = 43,402,352,168.38 : x - Step 2: Convert to fraction form
79,531,319,658.46/109,753,192,138.84 = 43,402,352,168.38/x - Step 3: Cross multiply
79,531,319,658.46x = 109,753,192,138.84 × 43,402,352,168.38 - Step 4: Simplify right side
79,531,319,658.46x = 4,763,546,696,813,808,451,584 - Step 5: Solve for x
x = 4,763,546,696,813,808,451,584/79,531,319,658.46 - Step 6: Final answer
x = 59,895,230,171.84
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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.