Finding the Fourth Proportional to 157,467,816.80, 236,201,725.20 and 147,901,878.80
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Solution
The fourth proportional to 157,467,816.80, 236,201,725.20 and 147,901,878.80 is: 221,852,818.20
Step by Step Solution
- Step 1: Write the proportion equation
157,467,816.80 : 236,201,725.20 = 147,901,878.80 : x - Step 2: Convert to fraction form
157,467,816.80/236,201,725.20 = 147,901,878.80/x - Step 3: Cross multiply
157,467,816.80x = 236,201,725.20 × 147,901,878.80 - Step 4: Simplify right side
157,467,816.80x = 34,934,678,932,881,308 - Step 5: Solve for x
x = 34,934,678,932,881,308/157,467,816.80 - Step 6: Final answer
x = 221,852,818.20
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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.