Finding the Fourth Proportional to 590,516,987.80, 885,775,481.70 and 153,816,827.80
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Solution
The fourth proportional to 590,516,987.80, 885,775,481.70 and 153,816,827.80 is: 230,725,241.70
Step by Step Solution
- Step 1: Write the proportion equation
590,516,987.80 : 885,775,481.70 = 153,816,827.80 : x - Step 2: Convert to fraction form
590,516,987.80/885,775,481.70 = 153,816,827.80/x - Step 3: Cross multiply
590,516,987.80x = 885,775,481.70 × 153,816,827.80 - Step 4: Simplify right side
590,516,987.80x = 136,247,174,738,110,976 - Step 5: Solve for x
x = 136,247,174,738,110,976/590,516,987.80 - Step 6: Final answer
x = 230,725,241.70
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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.