Finding the Fourth Proportional to 139,185,195.93, 192,075,697.35 and 76,465,356.03
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Solution
The fourth proportional to 139,185,195.93, 192,075,697.35 and 76,465,356.03 is: 105,522,261.07
Step by Step Solution
- Step 1: Write the proportion equation
139,185,195.93 : 192,075,697.35 = 76,465,356.03 : x - Step 2: Convert to fraction form
139,185,195.93/192,075,697.35 = 76,465,356.03/x - Step 3: Cross multiply
139,185,195.93x = 192,075,697.35 × 76,465,356.03 - Step 4: Simplify right side
139,185,195.93x = 14,687,136,582,578,278 - Step 5: Solve for x
x = 14,687,136,582,578,278/139,185,195.93 - Step 6: Final answer
x = 105,522,261.07
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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.