Finding the Fourth Proportional to 696,181,198.09, 960,979,951.56 and 413,922,965.55
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Solution
The fourth proportional to 696,181,198.09, 960,979,951.56 and 413,922,965.55 is: 571,362,272.45
Step by Step Solution
- Step 1: Write the proportion equation
696,181,198.09 : 960,979,951.56 = 413,922,965.55 : x - Step 2: Convert to fraction form
696,181,198.09/960,979,951.56 = 413,922,965.55/x - Step 3: Cross multiply
696,181,198.09x = 960,979,951.56 × 413,922,965.55 - Step 4: Simplify right side
696,181,198.09x = 397,771,671,380,579,392 - Step 5: Solve for x
x = 397,771,671,380,579,392/696,181,198.09 - Step 6: Final answer
x = 571,362,272.45
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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.