Finding the Fourth Proportional to 5,138,342.88, 7,709,235.04 and 1,680,242.04
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Solution
The fourth proportional to 5,138,342.88, 7,709,235.04 and 1,680,242.04 is: 2,520,925.74
Step by Step Solution
- Step 1: Write the proportion equation
5,138,342.88 : 7,709,235.04 = 1,680,242.04 : x - Step 2: Convert to fraction form
5,138,342.88/7,709,235.04 = 1,680,242.04/x - Step 3: Cross multiply
5,138,342.88x = 7,709,235.04 × 1,680,242.04 - Step 4: Simplify right side
5,138,342.88x = 12,953,380,810,449.08 - Step 5: Solve for x
x = 12,953,380,810,449.08/5,138,342.88 - Step 6: Final answer
x = 2,520,925.74
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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.