Finding the Fourth Proportional to 10,775,649.48, 14,870,743.28 and 6,129,315.40
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Solution
The fourth proportional to 10,775,649.48, 14,870,743.28 and 6,129,315.40 is: 8,458,652.63
Step by Step Solution
- Step 1: Write the proportion equation
10,775,649.48 : 14,870,743.28 = 6,129,315.40 : x - Step 2: Convert to fraction form
10,775,649.48/14,870,743.28 = 6,129,315.40/x - Step 3: Cross multiply
10,775,649.48x = 14,870,743.28 × 6,129,315.40 - Step 4: Simplify right side
10,775,649.48x = 91,147,475,795,550.52 - Step 5: Solve for x
x = 91,147,475,795,550.52/10,775,649.48 - Step 6: Final answer
x = 8,458,652.63
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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.