Finding the Fourth Proportional to 10,371,668.20, 15,557,502.30 and 2,798,621.80
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Solution
The fourth proportional to 10,371,668.20, 15,557,502.30 and 2,798,621.80 is: 4,197,932.70
Step by Step Solution
- Step 1: Write the proportion equation
10,371,668.20 : 15,557,502.30 = 2,798,621.80 : x - Step 2: Convert to fraction form
10,371,668.20/15,557,502.30 = 2,798,621.80/x - Step 3: Cross multiply
10,371,668.20x = 15,557,502.30 × 2,798,621.80 - Step 4: Simplify right side
10,371,668.20x = 43,539,565,090,330.14 - Step 5: Solve for x
x = 43,539,565,090,330.14/10,371,668.20 - Step 6: Final answer
x = 4,197,932.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.