Finding the Fourth Proportional to 112,331,123.20, 168,496,684.80 and 63,790,220.80
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Solution
The fourth proportional to 112,331,123.20, 168,496,684.80 and 63,790,220.80 is: 95,685,331.20
Step by Step Solution
- Step 1: Write the proportion equation
112,331,123.20 : 168,496,684.80 = 63,790,220.80 : x - Step 2: Convert to fraction form
112,331,123.20/168,496,684.80 = 63,790,220.80/x - Step 3: Cross multiply
112,331,123.20x = 168,496,684.80 × 63,790,220.80 - Step 4: Simplify right side
112,331,123.20x = 10,748,440,727,460,004 - Step 5: Solve for x
x = 10,748,440,727,460,004/112,331,123.20 - Step 6: Final answer
x = 95,685,331.20
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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.