Finding the Fourth Proportional to 430,274,944.50, 645,414,778.71 and 107,158,816.50
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Solution
The fourth proportional to 430,274,944.50, 645,414,778.71 and 107,158,816.50 is: 160,738,812.99
Step by Step Solution
- Step 1: Write the proportion equation
430,274,944.50 : 645,414,778.71 = 107,158,816.50 : x - Step 2: Convert to fraction form
430,274,944.50/645,414,778.71 = 107,158,816.50/x - Step 3: Cross multiply
430,274,944.50x = 645,414,778.71 × 107,158,816.50 - Step 4: Simplify right side
430,274,944.50x = 69,161,883,838,173,000 - Step 5: Solve for x
x = 69,161,883,838,173,000/430,274,944.50 - Step 6: Final answer
x = 160,738,812.99
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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.