Finding the Fourth Proportional to 1,826,998,495.83, 2,521,259,790.21 and 991,623,238.65
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Solution
The fourth proportional to 1,826,998,495.83, 2,521,259,790.21 and 991,623,238.65 is: 1,368,441,082.11
Step by Step Solution
- Step 1: Write the proportion equation
1,826,998,495.83 : 2,521,259,790.21 = 991,623,238.65 : x - Step 2: Convert to fraction form
1,826,998,495.83/2,521,259,790.21 = 991,623,238.65/x - Step 3: Cross multiply
1,826,998,495.83x = 2,521,259,790.21 × 991,623,238.65 - Step 4: Simplify right side
1,826,998,495.83x = 2,500,139,798,646,059,520 - Step 5: Solve for x
x = 2,500,139,798,646,059,520/1,826,998,495.83 - Step 6: Final answer
x = 1,368,441,082.11
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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.