Finding the Fourth Proportional to 6,389,166,140.72, 8,817,505,528.68 and 3,531,246,873.20
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Solution
The fourth proportional to 6,389,166,140.72, 8,817,505,528.68 and 3,531,246,873.20 is: 4,873,372,853.64
Step by Step Solution
- Step 1: Write the proportion equation
6,389,166,140.72 : 8,817,505,528.68 = 3,531,246,873.20 : x - Step 2: Convert to fraction form
6,389,166,140.72/8,817,505,528.68 = 3,531,246,873.20/x - Step 3: Cross multiply
6,389,166,140.72x = 8,817,505,528.68 × 3,531,246,873.20 - Step 4: Simplify right side
6,389,166,140.72x = 31,136,788,827,574,964,224 - Step 5: Solve for x
x = 31,136,788,827,574,964,224/6,389,166,140.72 - Step 6: Final answer
x = 4,873,372,853.64
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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.