Finding the Fourth Proportional to 472,392,515.70, 708,588,773.55 and 165,573,911.70
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Solution
The fourth proportional to 472,392,515.70, 708,588,773.55 and 165,573,911.70 is: 248,360,867.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,515.70 : 708,588,773.55 = 165,573,911.70 : x - Step 2: Convert to fraction form
472,392,515.70/708,588,773.55 = 165,573,911.70/x - Step 3: Cross multiply
472,392,515.70x = 708,588,773.55 × 165,573,911.70 - Step 4: Simplify right side
472,392,515.70x = 117,323,815,023,378,976 - Step 5: Solve for x
x = 117,323,815,023,378,976/472,392,515.70 - Step 6: Final answer
x = 248,360,867.55
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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.