Finding the Fourth Proportional to 208,589,901.80, 312,884,852.70 and 122,369,613.80
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Solution
The fourth proportional to 208,589,901.80, 312,884,852.70 and 122,369,613.80 is: 183,554,420.70
Step by Step Solution
- Step 1: Write the proportion equation
208,589,901.80 : 312,884,852.70 = 122,369,613.80 : x - Step 2: Convert to fraction form
208,589,901.80/312,884,852.70 = 122,369,613.80/x - Step 3: Cross multiply
208,589,901.80x = 312,884,852.70 × 122,369,613.80 - Step 4: Simplify right side
208,589,901.80x = 38,287,598,588,768,888 - Step 5: Solve for x
x = 38,287,598,588,768,888/208,589,901.80 - Step 6: Final answer
x = 183,554,420.70
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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.