Finding the Fourth Proportional to 5,187,751,107.59, 7,159,099,906.44 and 2,808,890,656.40
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Solution
The fourth proportional to 5,187,751,107.59, 7,159,099,906.44 and 2,808,890,656.40 is: 3,876,270,934.82
Step by Step Solution
- Step 1: Write the proportion equation
5,187,751,107.59 : 7,159,099,906.44 = 2,808,890,656.40 : x - Step 2: Convert to fraction form
5,187,751,107.59/7,159,099,906.44 = 2,808,890,656.40/x - Step 3: Cross multiply
5,187,751,107.59x = 7,159,099,906.44 × 2,808,890,656.40 - Step 4: Simplify right side
5,187,751,107.59x = 20,109,128,835,451,326,464 - Step 5: Solve for x
x = 20,109,128,835,451,326,464/5,187,751,107.59 - Step 6: Final answer
x = 3,876,270,934.82
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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.