Finding the Fourth Proportional to 79,841,152.80, 119,761,729.20 and 54,331,984.80
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Solution
The fourth proportional to 79,841,152.80, 119,761,729.20 and 54,331,984.80 is: 81,497,977.20
Step by Step Solution
- Step 1: Write the proportion equation
79,841,152.80 : 119,761,729.20 = 54,331,984.80 : x - Step 2: Convert to fraction form
79,841,152.80/119,761,729.20 = 54,331,984.80/x - Step 3: Cross multiply
79,841,152.80x = 119,761,729.20 × 54,331,984.80 - Step 4: Simplify right side
79,841,152.80x = 6,506,892,450,516,116 - Step 5: Solve for x
x = 6,506,892,450,516,116/79,841,152.80 - Step 6: Final answer
x = 81,497,977.20
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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.