Finding the Fourth Proportional to 4,638,678,841.88, 6,960,158,172.05 and 2,118,379,688.81
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Solution
The fourth proportional to 4,638,678,841.88, 6,960,158,172.05 and 2,118,379,688.81 is: 3,178,546,781.34
Step by Step Solution
- Step 1: Write the proportion equation
4,638,678,841.88 : 6,960,158,172.05 = 2,118,379,688.81 : x - Step 2: Convert to fraction form
4,638,678,841.88/6,960,158,172.05 = 2,118,379,688.81/x - Step 3: Cross multiply
4,638,678,841.88x = 6,960,158,172.05 × 2,118,379,688.81 - Step 4: Simplify right side
4,638,678,841.88x = 14,744,257,702,530,265,088 - Step 5: Solve for x
x = 14,744,257,702,530,265,088/4,638,678,841.88 - Step 6: Final answer
x = 3,178,546,781.34
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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.