Finding the Fourth Proportional to 102,405,946.20, 153,631,037.70 and 30,609,619.80
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Solution
The fourth proportional to 102,405,946.20, 153,631,037.70 and 30,609,619.80 is: 45,921,040.99
Step by Step Solution
- Step 1: Write the proportion equation
102,405,946.20 : 153,631,037.70 = 30,609,619.80 : x - Step 2: Convert to fraction form
102,405,946.20/153,631,037.70 = 30,609,619.80/x - Step 3: Cross multiply
102,405,946.20x = 153,631,037.70 × 30,609,619.80 - Step 4: Simplify right side
102,405,946.20x = 4,702,587,653,476,466 - Step 5: Solve for x
x = 4,702,587,653,476,466/102,405,946.20 - Step 6: Final answer
x = 45,921,040.99
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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.