Finding the Fourth Proportional to 153,912,255.26, 212,399,117.13 and 83,347,987.23
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Solution
The fourth proportional to 153,912,255.26, 212,399,117.13 and 83,347,987.23 is: 115,020,333.32
Step by Step Solution
- Step 1: Write the proportion equation
153,912,255.26 : 212,399,117.13 = 83,347,987.23 : x - Step 2: Convert to fraction form
153,912,255.26/212,399,117.13 = 83,347,987.23/x - Step 3: Cross multiply
153,912,255.26x = 212,399,117.13 × 83,347,987.23 - Step 4: Simplify right side
153,912,255.26x = 17,703,038,902,214,514 - Step 5: Solve for x
x = 17,703,038,902,214,514/153,912,255.26 - Step 6: Final answer
x = 115,020,333.32
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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.