Finding the Fourth Proportional to 12,975,207.40, 19,463,070.30 and 3,389,991.40
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Solution
The fourth proportional to 12,975,207.40, 19,463,070.30 and 3,389,991.40 is: 5,085,054.82
Step by Step Solution
- Step 1: Write the proportion equation
12,975,207.40 : 19,463,070.30 = 3,389,991.40 : x - Step 2: Convert to fraction form
12,975,207.40/19,463,070.30 = 3,389,991.40/x - Step 3: Cross multiply
12,975,207.40x = 19,463,070.30 × 3,389,991.40 - Step 4: Simplify right side
12,975,207.40x = 65,979,640,934,595.42 - Step 5: Solve for x
x = 65,979,640,934,595.42/12,975,207.40 - Step 6: Final answer
x = 5,085,054.82
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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.