Finding the Fourth Proportional to 5,127,381.60, 7,680,934.80 and 4,497,007.20
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Solution
The fourth proportional to 5,127,381.60, 7,680,934.80 and 4,497,007.20 is: 6,736,619.54
Step by Step Solution
- Step 1: Write the proportion equation
5,127,381.60 : 7,680,934.80 = 4,497,007.20 : x - Step 2: Convert to fraction form
5,127,381.60/7,680,934.80 = 4,497,007.20/x - Step 3: Cross multiply
5,127,381.60x = 7,680,934.80 × 4,497,007.20 - Step 4: Simplify right side
5,127,381.60x = 34,541,219,098,330.56 - Step 5: Solve for x
x = 34,541,219,098,330.56/5,127,381.60 - Step 6: Final answer
x = 6,736,619.54
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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.