Finding the Fourth Proportional to 199,331,135.20, 298,996,702.80 and 145,583,423.20
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Solution
The fourth proportional to 199,331,135.20, 298,996,702.80 and 145,583,423.20 is: 218,375,134.80
Step by Step Solution
- Step 1: Write the proportion equation
199,331,135.20 : 298,996,702.80 = 145,583,423.20 : x - Step 2: Convert to fraction form
199,331,135.20/298,996,702.80 = 145,583,423.20/x - Step 3: Cross multiply
199,331,135.20x = 298,996,702.80 × 145,583,423.20 - Step 4: Simplify right side
199,331,135.20x = 43,528,963,519,137,024 - Step 5: Solve for x
x = 43,528,963,519,137,024/199,331,135.20 - Step 6: Final answer
x = 218,375,134.80
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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.