Finding the Fourth Proportional to 5,100,485.51, 7,038,134.88 and 2,894,645.88
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Solution
The fourth proportional to 5,100,485.51, 7,038,134.88 and 2,894,645.88 is: 3,994,307.62
Step by Step Solution
- Step 1: Write the proportion equation
5,100,485.51 : 7,038,134.88 = 2,894,645.88 : x - Step 2: Convert to fraction form
5,100,485.51/7,038,134.88 = 2,894,645.88/x - Step 3: Cross multiply
5,100,485.51x = 7,038,134.88 × 2,894,645.88 - Step 4: Simplify right side
5,100,485.51x = 20,372,908,133,276.29 - Step 5: Solve for x
x = 20,372,908,133,276.29/5,100,485.51 - Step 6: Final answer
x = 3,994,307.62
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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.