Finding the Fourth Proportional to 13,697,725.20, 20,507,266.20 and 13,304,509.20
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Solution
The fourth proportional to 13,697,725.20, 20,507,266.20 and 13,304,509.20 is: 19,918,570.99
Step by Step Solution
- Step 1: Write the proportion equation
13,697,725.20 : 20,507,266.20 = 13,304,509.20 : x - Step 2: Convert to fraction form
13,697,725.20/20,507,266.20 = 13,304,509.20/x - Step 3: Cross multiply
13,697,725.20x = 20,507,266.20 × 13,304,509.20 - Step 4: Simplify right side
13,697,725.20x = 272,839,111,824,749 - Step 5: Solve for x
x = 272,839,111,824,749/13,697,725.20 - Step 6: Final answer
x = 19,918,570.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.