Finding the Fourth Proportional to 168,509,585.70, 252,764,378.55 and 77,810,321.70
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Solution
The fourth proportional to 168,509,585.70, 252,764,378.55 and 77,810,321.70 is: 116,715,482.55
Step by Step Solution
- Step 1: Write the proportion equation
168,509,585.70 : 252,764,378.55 = 77,810,321.70 : x - Step 2: Convert to fraction form
168,509,585.70/252,764,378.55 = 77,810,321.70/x - Step 3: Cross multiply
168,509,585.70x = 252,764,378.55 × 77,810,321.70 - Step 4: Simplify right side
168,509,585.70x = 19,667,677,609,276,080 - Step 5: Solve for x
x = 19,667,677,609,276,080/168,509,585.70 - Step 6: Final answer
x = 116,715,482.55
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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.