Finding the Fourth Proportional to 18,800,937.84, 28,201,407.07 and 12,409,695.42
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Solution
The fourth proportional to 18,800,937.84, 28,201,407.07 and 12,409,695.42 is: 18,614,543.32
Step by Step Solution
- Step 1: Write the proportion equation
18,800,937.84 : 28,201,407.07 = 12,409,695.42 : x - Step 2: Convert to fraction form
18,800,937.84/28,201,407.07 = 12,409,695.42/x - Step 3: Cross multiply
18,800,937.84x = 28,201,407.07 × 12,409,695.42 - Step 4: Simplify right side
18,800,937.84x = 349,970,872,040,623.31 - Step 5: Solve for x
x = 349,970,872,040,623.31/18,800,937.84 - Step 6: Final answer
x = 18,614,543.32
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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.