Finding the Fourth Proportional to 177,686,793.42, 245,206,937.91 and 99,370,658.31
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Solution
The fourth proportional to 177,686,793.42, 245,206,937.91 and 99,370,658.31 is: 137,131,040.37
Step by Step Solution
- Step 1: Write the proportion equation
177,686,793.42 : 245,206,937.91 = 99,370,658.31 : x - Step 2: Convert to fraction form
177,686,793.42/245,206,937.91 = 99,370,658.31/x - Step 3: Cross multiply
177,686,793.42x = 245,206,937.91 × 99,370,658.31 - Step 4: Simplify right side
177,686,793.42x = 24,366,374,842,295,996 - Step 5: Solve for x
x = 24,366,374,842,295,996/177,686,793.42 - Step 6: Final answer
x = 137,131,040.37
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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.