Finding the Fourth Proportional to 133,873,687.42, 199,909,023.64 and 109,330,302.49
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Solution
The fourth proportional to 133,873,687.42, 199,909,023.64 and 109,330,302.49 is: 163,259,221.78
Step by Step Solution
- Step 1: Write the proportion equation
133,873,687.42 : 199,909,023.64 = 109,330,302.49 : x - Step 2: Convert to fraction form
133,873,687.42/199,909,023.64 = 109,330,302.49/x - Step 3: Cross multiply
133,873,687.42x = 199,909,023.64 × 109,330,302.49 - Step 4: Simplify right side
133,873,687.42x = 21,856,114,025,041,760 - Step 5: Solve for x
x = 21,856,114,025,041,760/133,873,687.42 - Step 6: Final answer
x = 163,259,221.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.