Finding the Fourth Proportional to 6,455,179.12, 8,908,212.20 and 3,554,839.68
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Solution
The fourth proportional to 6,455,179.12, 8,908,212.20 and 3,554,839.68 is: 4,905,714.56
Step by Step Solution
- Step 1: Write the proportion equation
6,455,179.12 : 8,908,212.20 = 3,554,839.68 : x - Step 2: Convert to fraction form
6,455,179.12/8,908,212.20 = 3,554,839.68/x - Step 3: Cross multiply
6,455,179.12x = 8,908,212.20 × 3,554,839.68 - Step 4: Simplify right side
6,455,179.12x = 31,667,266,206,420.09 - Step 5: Solve for x
x = 31,667,266,206,420.09/6,455,179.12 - Step 6: Final answer
x = 4,905,714.56
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1.5x scale
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.