Finding the Fourth Proportional to 7,193,309.18, 9,926,650.49 and 3,930,053.67
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Solution
The fourth proportional to 7,193,309.18, 9,926,650.49 and 3,930,053.67 is: 5,423,410.59
Step by Step Solution
- Step 1: Write the proportion equation
7,193,309.18 : 9,926,650.49 = 3,930,053.67 : x - Step 2: Convert to fraction form
7,193,309.18/9,926,650.49 = 3,930,053.67/x - Step 3: Cross multiply
7,193,309.18x = 9,926,650.49 × 3,930,053.67 - Step 4: Simplify right side
7,193,309.18x = 39,012,269,169,381.52 - Step 5: Solve for x
x = 39,012,269,169,381.52/7,193,309.18 - Step 6: Final answer
x = 5,423,410.59
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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.