Finding the Fourth Proportional to 187,235,711.70, 280,306,137.15 and 133,487,999.70
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Solution
The fourth proportional to 187,235,711.70, 280,306,137.15 and 133,487,999.70 is: 199,841,714.02
Step by Step Solution
- Step 1: Write the proportion equation
187,235,711.70 : 280,306,137.15 = 133,487,999.70 : x - Step 2: Convert to fraction form
187,235,711.70/280,306,137.15 = 133,487,999.70/x - Step 3: Cross multiply
187,235,711.70x = 280,306,137.15 × 133,487,999.70 - Step 4: Simplify right side
187,235,711.70x = 37,417,505,551,787,360 - Step 5: Solve for x
x = 37,417,505,551,787,360/187,235,711.70 - Step 6: Final answer
x = 199,841,714.02
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1.5x scale
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.