Finding the Fourth Proportional to 15,134,117, 20,885,522.60 and 8,259,041.96
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Solution
The fourth proportional to 15,134,117, 20,885,522.60 and 8,259,041.96 is: 11,397,718.65
Step by Step Solution
- Step 1: Write the proportion equation
15,134,117 : 20,885,522.60 = 8,259,041.96 : x - Step 2: Convert to fraction form
15,134,117/20,885,522.60 = 8,259,041.96/x - Step 3: Cross multiply
15,134,117x = 20,885,522.60 × 8,259,041.96 - Step 4: Simplify right side
15,134,117x = 172,494,407,509,928.31 - Step 5: Solve for x
x = 172,494,407,509,928.31/15,134,117 - Step 6: Final answer
x = 11,397,718.65
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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.