Finding the Fourth Proportional to 5,102,197.42, 7,041,042.21 and 2,779,082.77
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Solution
The fourth proportional to 5,102,197.42, 7,041,042.21 and 2,779,082.77 is: 3,835,139.54
Step by Step Solution
- Step 1: Write the proportion equation
5,102,197.42 : 7,041,042.21 = 2,779,082.77 : x - Step 2: Convert to fraction form
5,102,197.42/7,041,042.21 = 2,779,082.77/x - Step 3: Cross multiply
5,102,197.42x = 7,041,042.21 × 2,779,082.77 - Step 4: Simplify right side
5,102,197.42x = 19,567,639,053,448.51 - Step 5: Solve for x
x = 19,567,639,053,448.51/5,102,197.42 - Step 6: Final answer
x = 3,835,139.54
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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.