Finding the Fourth Proportional to 5,665,365.40, 7,817,959.68 and 3,217,968.79
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Solution
The fourth proportional to 5,665,365.40, 7,817,959.68 and 3,217,968.79 is: 4,440,658.01
Step by Step Solution
- Step 1: Write the proportion equation
5,665,365.40 : 7,817,959.68 = 3,217,968.79 : x - Step 2: Convert to fraction form
5,665,365.40/7,817,959.68 = 3,217,968.79/x - Step 3: Cross multiply
5,665,365.40x = 7,817,959.68 × 3,217,968.79 - Step 4: Simplify right side
5,665,365.40x = 25,157,950,251,718.39 - Step 5: Solve for x
x = 25,157,950,251,718.39/5,665,365.40 - Step 6: Final answer
x = 4,440,658.01
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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.