Finding the Fourth Proportional to 442,928,124.20, 664,193,120.70 and 170,208,252.20
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Solution
The fourth proportional to 442,928,124.20, 664,193,120.70 and 170,208,252.20 is: 255,235,881.45
Step by Step Solution
- Step 1: Write the proportion equation
442,928,124.20 : 664,193,120.70 = 170,208,252.20 : x - Step 2: Convert to fraction form
442,928,124.20/664,193,120.70 = 170,208,252.20/x - Step 3: Cross multiply
442,928,124.20x = 664,193,120.70 × 170,208,252.20 - Step 4: Simplify right side
442,928,124.20x = 113,051,150,197,610,640 - Step 5: Solve for x
x = 113,051,150,197,610,640/442,928,124.20 - Step 6: Final answer
x = 255,235,881.45
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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.