Finding the Fourth Proportional to 192,457,272.90, 288,685,909.35 and 190,756,661.70
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Solution
The fourth proportional to 192,457,272.90, 288,685,909.35 and 190,756,661.70 is: 286,134,992.55
Step by Step Solution
- Step 1: Write the proportion equation
192,457,272.90 : 288,685,909.35 = 190,756,661.70 : x - Step 2: Convert to fraction form
192,457,272.90/288,685,909.35 = 190,756,661.70/x - Step 3: Cross multiply
192,457,272.90x = 288,685,909.35 × 190,756,661.70 - Step 4: Simplify right side
192,457,272.90x = 55,068,760,347,434,816 - Step 5: Solve for x
x = 55,068,760,347,434,816/192,457,272.90 - Step 6: Final answer
x = 286,134,992.55
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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.