Finding the Fourth Proportional to 7,186,752,895.80, 10,780,129,343.70 and 4,393,215,564.60
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Solution
The fourth proportional to 7,186,752,895.80, 10,780,129,343.70 and 4,393,215,564.60 is: 6,589,823,346.90
Step by Step Solution
- Step 1: Write the proportion equation
7,186,752,895.80 : 10,780,129,343.70 = 4,393,215,564.60 : x - Step 2: Convert to fraction form
7,186,752,895.80/10,780,129,343.70 = 4,393,215,564.60/x - Step 3: Cross multiply
7,186,752,895.80x = 10,780,129,343.70 × 4,393,215,564.60 - Step 4: Simplify right side
7,186,752,895.80x = 47,359,432,021,144,027,136 - Step 5: Solve for x
x = 47,359,432,021,144,027,136/7,186,752,895.80 - Step 6: Final answer
x = 6,589,823,346.90
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1.5x scale
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.