Finding the Fourth Proportional to 330,092,495.40, 495,138,743.10 and 213,866,348.70
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Solution
The fourth proportional to 330,092,495.40, 495,138,743.10 and 213,866,348.70 is: 320,799,523.05
Step by Step Solution
- Step 1: Write the proportion equation
330,092,495.40 : 495,138,743.10 = 213,866,348.70 : x - Step 2: Convert to fraction form
330,092,495.40/495,138,743.10 = 213,866,348.70/x - Step 3: Cross multiply
330,092,495.40x = 495,138,743.10 × 213,866,348.70 - Step 4: Simplify right side
330,092,495.40x = 105,893,515,086,704,320 - Step 5: Solve for x
x = 105,893,515,086,704,320/330,092,495.40 - Step 6: Final answer
x = 320,799,523.05
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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.