Finding the Fourth Proportional to 412,128,497.80, 618,192,746.70 and 248,869,822.60
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Solution
The fourth proportional to 412,128,497.80, 618,192,746.70 and 248,869,822.60 is: 373,304,733.90
Step by Step Solution
- Step 1: Write the proportion equation
412,128,497.80 : 618,192,746.70 = 248,869,822.60 : x - Step 2: Convert to fraction form
412,128,497.80/618,192,746.70 = 248,869,822.60/x - Step 3: Cross multiply
412,128,497.80x = 618,192,746.70 × 248,869,822.60 - Step 4: Simplify right side
412,128,497.80x = 153,849,519,203,835,744 - Step 5: Solve for x
x = 153,849,519,203,835,744/412,128,497.80 - Step 6: Final answer
x = 373,304,733.90
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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.