Finding the Fourth Proportional to 9,791,952.21, 13,512,625.47 and 5,440,926.78
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Solution
The fourth proportional to 9,791,952.21, 13,512,625.47 and 5,440,926.78 is: 7,508,329.72
Step by Step Solution
- Step 1: Write the proportion equation
9,791,952.21 : 13,512,625.47 = 5,440,926.78 : x - Step 2: Convert to fraction form
9,791,952.21/13,512,625.47 = 5,440,926.78/x - Step 3: Cross multiply
9,791,952.21x = 13,512,625.47 × 5,440,926.78 - Step 4: Simplify right side
9,791,952.21x = 73,521,205,787,833.09 - Step 5: Solve for x
x = 73,521,205,787,833.09/9,791,952.21 - Step 6: Final answer
x = 7,508,329.72
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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.