Finding the Fourth Proportional to 275,347,312.72, 380,006,740.18 and 205,611,624.70
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Solution
The fourth proportional to 275,347,312.72, 380,006,740.18 and 205,611,624.70 is: 283,764,538.95
Step by Step Solution
- Step 1: Write the proportion equation
275,347,312.72 : 380,006,740.18 = 205,611,624.70 : x - Step 2: Convert to fraction form
275,347,312.72/380,006,740.18 = 205,611,624.70/x - Step 3: Cross multiply
275,347,312.72x = 380,006,740.18 × 205,611,624.70 - Step 4: Simplify right side
275,347,312.72x = 78,133,803,245,360,560 - Step 5: Solve for x
x = 78,133,803,245,360,560/275,347,312.72 - Step 6: Final answer
x = 283,764,538.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.