Finding the Fourth Proportional to 7,899,699,839.50, 10,902,766,143.50 and 6,218,803,312.05
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Solution
The fourth proportional to 7,899,699,839.50, 10,902,766,143.50 and 6,218,803,312.05 is: 8,582,877,777.80
Step by Step Solution
- Step 1: Write the proportion equation
7,899,699,839.50 : 10,902,766,143.50 = 6,218,803,312.05 : x - Step 2: Convert to fraction form
7,899,699,839.50/10,902,766,143.50 = 6,218,803,312.05/x - Step 3: Cross multiply
7,899,699,839.50x = 10,902,766,143.50 × 6,218,803,312.05 - Step 4: Simplify right side
7,899,699,839.50x = 67,802,158,203,707,473,920 - Step 5: Solve for x
x = 67,802,158,203,707,473,920/7,899,699,839.50 - Step 6: Final answer
x = 8,582,877,777.80
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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.