Finding the Fourth Proportional to 5,531,642,890.07, 7,628,842,861.07 and 3,920,911,944.44
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Solution
The fourth proportional to 5,531,642,890.07, 7,628,842,861.07 and 3,920,911,944.44 is: 5,407,438,927.39
Step by Step Solution
- Step 1: Write the proportion equation
5,531,642,890.07 : 7,628,842,861.07 = 3,920,911,944.44 : x - Step 2: Convert to fraction form
5,531,642,890.07/7,628,842,861.07 = 3,920,911,944.44/x - Step 3: Cross multiply
5,531,642,890.07x = 7,628,842,861.07 × 3,920,911,944.44 - Step 4: Simplify right side
5,531,642,890.07x = 29,912,021,096,167,436,288 - Step 5: Solve for x
x = 29,912,021,096,167,436,288/5,531,642,890.07 - Step 6: Final answer
x = 5,407,438,927.39
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1.5x scale
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.