Finding the Fourth Proportional to 98,609,126.94, 136,075,615.92 and 53,954,132.58
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Solution
The fourth proportional to 98,609,126.94, 136,075,615.92 and 53,954,132.58 is: 74,453,978.55
Step by Step Solution
- Step 1: Write the proportion equation
98,609,126.94 : 136,075,615.92 = 53,954,132.58 : x - Step 2: Convert to fraction form
98,609,126.94/136,075,615.92 = 53,954,132.58/x - Step 3: Cross multiply
98,609,126.94x = 136,075,615.92 × 53,954,132.58 - Step 4: Simplify right side
98,609,126.94x = 7,341,841,822,252,838 - Step 5: Solve for x
x = 7,341,841,822,252,838/98,609,126.94 - Step 6: Final answer
x = 74,453,978.55
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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.