Finding the Fourth Proportional to 5,428,261.84, 7,490,471.12 and 3,136,373.36
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Solution
The fourth proportional to 5,428,261.84, 7,490,471.12 and 3,136,373.36 is: 4,327,888.88
Step by Step Solution
- Step 1: Write the proportion equation
5,428,261.84 : 7,490,471.12 = 3,136,373.36 : x - Step 2: Convert to fraction form
5,428,261.84/7,490,471.12 = 3,136,373.36/x - Step 3: Cross multiply
5,428,261.84x = 7,490,471.12 × 3,136,373.36 - Step 4: Simplify right side
5,428,261.84x = 23,492,914,074,617.36 - Step 5: Solve for x
x = 23,492,914,074,617.36/5,428,261.84 - Step 6: Final answer
x = 4,327,888.88
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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.