Finding the Fourth Proportional to 117,554,801.80, 176,332,202.70 and 87,321,713.80
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Solution
The fourth proportional to 117,554,801.80, 176,332,202.70 and 87,321,713.80 is: 130,982,570.70
Step by Step Solution
- Step 1: Write the proportion equation
117,554,801.80 : 176,332,202.70 = 87,321,713.80 : x - Step 2: Convert to fraction form
117,554,801.80/176,332,202.70 = 87,321,713.80/x - Step 3: Cross multiply
117,554,801.80x = 176,332,202.70 × 87,321,713.80 - Step 4: Simplify right side
117,554,801.80x = 15,397,630,137,892,986 - Step 5: Solve for x
x = 15,397,630,137,892,986/117,554,801.80 - Step 6: Final answer
x = 130,982,570.70
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1.5x scale
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.