Finding the Fourth Proportional to 30,344,429.94, 41,879,148.30 and 19,899,233.91
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Solution
The fourth proportional to 30,344,429.94, 41,879,148.30 and 19,899,233.91 is: 27,463,457.70
Step by Step Solution
- Step 1: Write the proportion equation
30,344,429.94 : 41,879,148.30 = 19,899,233.91 : x - Step 2: Convert to fraction form
30,344,429.94/41,879,148.30 = 19,899,233.91/x - Step 3: Cross multiply
30,344,429.94x = 41,879,148.30 × 19,899,233.91 - Step 4: Simplify right side
30,344,429.94x = 833,362,967,973,278.75 - Step 5: Solve for x
x = 833,362,967,973,278.75/30,344,429.94 - Step 6: Final answer
x = 27,463,457.70
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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.