Finding the Fourth Proportional to 5,390,782.94, 7,439,223.97 and 2,943,386.42
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Solution
The fourth proportional to 5,390,782.94, 7,439,223.97 and 2,943,386.42 is: 4,061,842.42
Step by Step Solution
- Step 1: Write the proportion equation
5,390,782.94 : 7,439,223.97 = 2,943,386.42 : x - Step 2: Convert to fraction form
5,390,782.94/7,439,223.97 = 2,943,386.42/x - Step 3: Cross multiply
5,390,782.94x = 7,439,223.97 × 2,943,386.42 - Step 4: Simplify right side
5,390,782.94x = 21,896,510,808,636.48 - Step 5: Solve for x
x = 21,896,510,808,636.48/5,390,782.94 - Step 6: Final answer
x = 4,061,842.42
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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.