Finding the Fourth Proportional to 98,885,414.45, 136,455,220.11 and 54,830,782.38
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Solution
The fourth proportional to 98,885,414.45, 136,455,220.11 and 54,830,782.38 is: 75,662,791.32
Step by Step Solution
- Step 1: Write the proportion equation
98,885,414.45 : 136,455,220.11 = 54,830,782.38 : x - Step 2: Convert to fraction form
98,885,414.45/136,455,220.11 = 54,830,782.38/x - Step 3: Cross multiply
98,885,414.45x = 136,455,220.11 × 54,830,782.38 - Step 4: Simplify right side
98,885,414.45x = 7,481,946,478,466,411 - Step 5: Solve for x
x = 7,481,946,478,466,411/98,885,414.45 - Step 6: Final answer
x = 75,662,791.32
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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.