Finding the Fourth Proportional to 5,167,230.96, 7,130,315.25 and 2,991,920.94
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Solution
The fourth proportional to 5,167,230.96, 7,130,315.25 and 2,991,920.94 is: 4,128,582.54
Step by Step Solution
- Step 1: Write the proportion equation
5,167,230.96 : 7,130,315.25 = 2,991,920.94 : x - Step 2: Convert to fraction form
5,167,230.96/7,130,315.25 = 2,991,920.94/x - Step 3: Cross multiply
5,167,230.96x = 7,130,315.25 × 2,991,920.94 - Step 4: Simplify right side
5,167,230.96x = 21,333,339,505,276.34 - Step 5: Solve for x
x = 21,333,339,505,276.34/5,167,230.96 - Step 6: Final answer
x = 4,128,582.54
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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.