Finding the Fourth Proportional to 171,974,840.90, 257,707,169.46 and 126,313,430.18
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Solution
The fourth proportional to 171,974,840.90, 257,707,169.46 and 126,313,430.18 is: 189,282,783.38
Step by Step Solution
- Step 1: Write the proportion equation
171,974,840.90 : 257,707,169.46 = 126,313,430.18 : x - Step 2: Convert to fraction form
171,974,840.90/257,707,169.46 = 126,313,430.18/x - Step 3: Cross multiply
171,974,840.90x = 257,707,169.46 × 126,313,430.18 - Step 4: Simplify right side
171,974,840.90x = 32,551,876,555,182,604 - Step 5: Solve for x
x = 32,551,876,555,182,604/171,974,840.90 - Step 6: Final answer
x = 189,282,783.38
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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.