Finding the Fourth Proportional to 158,195,095.08, 218,310,977.46 and 87,631,786.08
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Solution
The fourth proportional to 158,195,095.08, 218,310,977.46 and 87,631,786.08 is: 120,932,832.12
Step by Step Solution
- Step 1: Write the proportion equation
158,195,095.08 : 218,310,977.46 = 87,631,786.08 : x - Step 2: Convert to fraction form
158,195,095.08/218,310,977.46 = 87,631,786.08/x - Step 3: Cross multiply
158,195,095.08x = 218,310,977.46 × 87,631,786.08 - Step 4: Simplify right side
158,195,095.08x = 19,130,980,875,690,424 - Step 5: Solve for x
x = 19,130,980,875,690,424/158,195,095.08 - Step 6: Final answer
x = 120,932,832.12
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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.