Finding the Fourth Proportional to 138,700,604.05, 191,409,924.93 and 79,160,704.90
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Solution
The fourth proportional to 138,700,604.05, 191,409,924.93 and 79,160,704.90 is: 109,243,537.09
Step by Step Solution
- Step 1: Write the proportion equation
138,700,604.05 : 191,409,924.93 = 79,160,704.90 : x - Step 2: Convert to fraction form
138,700,604.05/191,409,924.93 = 79,160,704.90/x - Step 3: Cross multiply
138,700,604.05x = 191,409,924.93 × 79,160,704.90 - Step 4: Simplify right side
138,700,604.05x = 15,152,144,582,314,884 - Step 5: Solve for x
x = 15,152,144,582,314,884/138,700,604.05 - Step 6: Final answer
x = 109,243,537.09
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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.