Finding the Fourth Proportional to 16,790,462.80, 25,143,703.80 and 13,431,230.80
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Solution
The fourth proportional to 16,790,462.80, 25,143,703.80 and 13,431,230.80 is: 20,113,256.73
Step by Step Solution
- Step 1: Write the proportion equation
16,790,462.80 : 25,143,703.80 = 13,431,230.80 : x - Step 2: Convert to fraction form
16,790,462.80/25,143,703.80 = 13,431,230.80/x - Step 3: Cross multiply
16,790,462.80x = 25,143,703.80 × 13,431,230.80 - Step 4: Simplify right side
16,790,462.80x = 337,710,888,904,637.06 - Step 5: Solve for x
x = 337,710,888,904,637.06/16,790,462.80 - Step 6: Final answer
x = 20,113,256.73
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1.5x scale
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.