Finding the Fourth Proportional to 2,220,931,770.76, 3,311,541,939.17 and 2,159,913,043.96
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Solution
The fourth proportional to 2,220,931,770.76, 3,311,541,939.17 and 2,159,913,043.96 is: 3,220,559,372.51
Step by Step Solution
- Step 1: Write the proportion equation
2,220,931,770.76 : 3,311,541,939.17 = 2,159,913,043.96 : x - Step 2: Convert to fraction form
2,220,931,770.76/3,311,541,939.17 = 2,159,913,043.96/x - Step 3: Cross multiply
2,220,931,770.76x = 3,311,541,939.17 × 2,159,913,043.96 - Step 4: Simplify right side
2,220,931,770.76x = 7,152,642,630,033,875,968 - Step 5: Solve for x
x = 7,152,642,630,033,875,968/2,220,931,770.76 - Step 6: Final answer
x = 3,220,559,372.51
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.