Finding the Fourth Proportional to 1,672,245,027.14, 2,307,845,198.84 and 919,690,800.21
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Solution
The fourth proportional to 1,672,245,027.14, 2,307,845,198.84 and 919,690,800.21 is: 1,269,254,184.19
Step by Step Solution
- Step 1: Write the proportion equation
1,672,245,027.14 : 2,307,845,198.84 = 919,690,800.21 : x - Step 2: Convert to fraction form
1,672,245,027.14/2,307,845,198.84 = 919,690,800.21/x - Step 3: Cross multiply
1,672,245,027.14x = 2,307,845,198.84 × 919,690,800.21 - Step 4: Simplify right side
1,672,245,027.14x = 2,122,503,997,677,367,808 - Step 5: Solve for x
x = 2,122,503,997,677,367,808/1,672,245,027.14 - Step 6: Final answer
x = 1,269,254,184.19
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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.