Finding the Fourth Proportional to 79,841,143.80, 119,761,715.70 and 54,331,975.80
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Solution
The fourth proportional to 79,841,143.80, 119,761,715.70 and 54,331,975.80 is: 81,497,963.70
Step by Step Solution
- Step 1: Write the proportion equation
79,841,143.80 : 119,761,715.70 = 54,331,975.80 : x - Step 2: Convert to fraction form
79,841,143.80/119,761,715.70 = 54,331,975.80/x - Step 3: Cross multiply
79,841,143.80x = 119,761,715.70 × 54,331,975.80 - Step 4: Simplify right side
79,841,143.80x = 6,506,890,639,178,880 - Step 5: Solve for x
x = 6,506,890,639,178,880/79,841,143.80 - Step 6: Final answer
x = 81,497,963.70
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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.