Finding the Fourth Proportional to 14,365,523.55, 19,824,844.17 and 7,839,574.21
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Solution
The fourth proportional to 14,365,523.55, 19,824,844.17 and 7,839,574.21 is: 10,818,842.52
Step by Step Solution
- Step 1: Write the proportion equation
14,365,523.55 : 19,824,844.17 = 7,839,574.21 : x - Step 2: Convert to fraction form
14,365,523.55/19,824,844.17 = 7,839,574.21/x - Step 3: Cross multiply
14,365,523.55x = 19,824,844.17 × 7,839,574.21 - Step 4: Simplify right side
14,365,523.55x = 155,418,337,072,400.88 - Step 5: Solve for x
x = 155,418,337,072,400.88/14,365,523.55 - Step 6: Final answer
x = 10,818,842.52
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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.