Finding the Fourth Proportional to 8,481,951.12, 11,709,158.04 and 5,221,560.58
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Solution
The fourth proportional to 8,481,951.12, 11,709,158.04 and 5,221,560.58 is: 7,208,256.35
Step by Step Solution
- Step 1: Write the proportion equation
8,481,951.12 : 11,709,158.04 = 5,221,560.58 : x - Step 2: Convert to fraction form
8,481,951.12/11,709,158.04 = 5,221,560.58/x - Step 3: Cross multiply
8,481,951.12x = 11,709,158.04 × 5,221,560.58 - Step 4: Simplify right side
8,481,951.12x = 61,140,078,046,654.06 - Step 5: Solve for x
x = 61,140,078,046,654.06/8,481,951.12 - Step 6: Final answer
x = 7,208,256.35
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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.