Finding the Fourth Proportional to 3,917,651.99, 5,406,359.68 and 2,198,772.51
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Solution
The fourth proportional to 3,917,651.99, 5,406,359.68 and 2,198,772.51 is: 3,034,306.02
Step by Step Solution
- Step 1: Write the proportion equation
3,917,651.99 : 5,406,359.68 = 2,198,772.51 : x - Step 2: Convert to fraction form
3,917,651.99/5,406,359.68 = 2,198,772.51/x - Step 3: Cross multiply
3,917,651.99x = 5,406,359.68 × 2,198,772.51 - Step 4: Simplify right side
3,917,651.99x = 11,887,355,032,562.53 - Step 5: Solve for x
x = 11,887,355,032,562.53/3,917,651.99 - Step 6: Final answer
x = 3,034,306.02
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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.