Finding the Fourth Proportional to 6,979,505,039.12, 9,631,748,195.40 and 3,807,679,344.08
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Solution
The fourth proportional to 6,979,505,039.12, 9,631,748,195.40 and 3,807,679,344.08 is: 5,254,614,538.63
Step by Step Solution
- Step 1: Write the proportion equation
6,979,505,039.12 : 9,631,748,195.40 = 3,807,679,344.08 : x - Step 2: Convert to fraction form
6,979,505,039.12/9,631,748,195.40 = 3,807,679,344.08/x - Step 3: Cross multiply
6,979,505,039.12x = 9,631,748,195.40 × 3,807,679,344.08 - Step 4: Simplify right side
6,979,505,039.12x = 36,674,608,651,004,395,520 - Step 5: Solve for x
x = 36,674,608,651,004,395,520/6,979,505,039.12 - Step 6: Final answer
x = 5,254,614,538.63
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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.