Finding the Fourth Proportional to 472,392,893.70, 708,589,340.55 and 165,574,289.70
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Solution
The fourth proportional to 472,392,893.70, 708,589,340.55 and 165,574,289.70 is: 248,361,434.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,893.70 : 708,589,340.55 = 165,574,289.70 : x - Step 2: Convert to fraction form
472,392,893.70/708,589,340.55 = 165,574,289.70/x - Step 3: Cross multiply
472,392,893.70x = 708,589,340.55 × 165,574,289.70 - Step 4: Simplify right side
472,392,893.70x = 117,324,176,750,557,648 - Step 5: Solve for x
x = 117,324,176,750,557,648/472,392,893.70 - Step 6: Final answer
x = 248,361,434.55
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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.