Finding the Fourth Proportional to 442,887,686.40, 664,331,529.60 and 410,639,059.20
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Solution
The fourth proportional to 442,887,686.40, 664,331,529.60 and 410,639,059.20 is: 615,958,588.80
Step by Step Solution
- Step 1: Write the proportion equation
442,887,686.40 : 664,331,529.60 = 410,639,059.20 : x - Step 2: Convert to fraction form
442,887,686.40/664,331,529.60 = 410,639,059.20/x - Step 3: Cross multiply
442,887,686.40x = 664,331,529.60 × 410,639,059.20 - Step 4: Simplify right side
442,887,686.40x = 272,800,474,311,840,960 - Step 5: Solve for x
x = 272,800,474,311,840,960/442,887,686.40 - Step 6: Final answer
x = 615,958,588.80
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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.