Finding the Fourth Proportional to 6,389,166,141.72, 8,817,505,530.06 and 3,531,246,874.20
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Solution
The fourth proportional to 6,389,166,141.72, 8,817,505,530.06 and 3,531,246,874.20 is: 4,873,372,855.02
Step by Step Solution
- Step 1: Write the proportion equation
6,389,166,141.72 : 8,817,505,530.06 = 3,531,246,874.20 : x - Step 2: Convert to fraction form
6,389,166,141.72/8,817,505,530.06 = 3,531,246,874.20/x - Step 3: Cross multiply
6,389,166,141.72x = 8,817,505,530.06 × 3,531,246,874.20 - Step 4: Simplify right side
6,389,166,141.72x = 31,136,788,841,265,586,176 - Step 5: Solve for x
x = 31,136,788,841,265,586,176/6,389,166,141.72 - Step 6: Final answer
x = 4,873,372,855.02
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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.