Finding the Fourth Proportional to 117,447,252.80, 176,170,879.20 and 87,214,164.80
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Solution
The fourth proportional to 117,447,252.80, 176,170,879.20 and 87,214,164.80 is: 130,821,247.20
Step by Step Solution
- Step 1: Write the proportion equation
117,447,252.80 : 176,170,879.20 = 87,214,164.80 : x - Step 2: Convert to fraction form
117,447,252.80/176,170,879.20 = 87,214,164.80/x - Step 3: Cross multiply
117,447,252.80x = 176,170,879.20 × 87,214,164.80 - Step 4: Simplify right side
117,447,252.80x = 15,364,596,091,509,690 - Step 5: Solve for x
x = 15,364,596,091,509,690/117,447,252.80 - Step 6: Final answer
x = 130,821,247.20
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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.