Finding the Fourth Proportional to 686,346,104.14, 947,158,234.01 and 373,080,318.10
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Solution
The fourth proportional to 686,346,104.14, 947,158,234.01 and 373,080,318.10 is: 514,851,170.72
Step by Step Solution
- Step 1: Write the proportion equation
686,346,104.14 : 947,158,234.01 = 373,080,318.10 : x - Step 2: Convert to fraction form
686,346,104.14/947,158,234.01 = 373,080,318.10/x - Step 3: Cross multiply
686,346,104.14x = 947,158,234.01 × 373,080,318.10 - Step 4: Simplify right side
686,346,104.14x = 353,366,095,235,485,056 - Step 5: Solve for x
x = 353,366,095,235,485,056/686,346,104.14 - Step 6: Final answer
x = 514,851,170.72
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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.