Finding the Fourth Proportional to 7,214,169.42, 9,955,553.81 and 3,950,991.95
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Solution
The fourth proportional to 7,214,169.42, 9,955,553.81 and 3,950,991.95 is: 5,452,368.89
Step by Step Solution
- Step 1: Write the proportion equation
7,214,169.42 : 9,955,553.81 = 3,950,991.95 : x - Step 2: Convert to fraction form
7,214,169.42/9,955,553.81 = 3,950,991.95/x - Step 3: Cross multiply
7,214,169.42x = 9,955,553.81 × 3,950,991.95 - Step 4: Simplify right side
7,214,169.42x = 39,334,312,891,569.10 - Step 5: Solve for x
x = 39,334,312,891,569.10/7,214,169.42 - Step 6: Final answer
x = 5,452,368.89
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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.