Finding the Fourth Proportional to 288,151,461.42, 397,649,149.81 and 155,992,457.94
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Solution
The fourth proportional to 288,151,461.42, 397,649,149.81 and 155,992,457.94 is: 215,269,663.98
Step by Step Solution
- Step 1: Write the proportion equation
288,151,461.42 : 397,649,149.81 = 155,992,457.94 : x - Step 2: Convert to fraction form
288,151,461.42/397,649,149.81 = 155,992,457.94/x - Step 3: Cross multiply
288,151,461.42x = 397,649,149.81 × 155,992,457.94 - Step 4: Simplify right side
288,151,461.42x = 62,030,268,275,833,224 - Step 5: Solve for x
x = 62,030,268,275,833,224/288,151,461.42 - Step 6: Final answer
x = 215,269,663.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.