Finding the Fourth Proportional to 15,098,729.33, 20,838,122.27 and 8,574,454.53
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Solution
The fourth proportional to 15,098,729.33, 20,838,122.27 and 8,574,454.53 is: 11,833,812.50
Step by Step Solution
- Step 1: Write the proportion equation
15,098,729.33 : 20,838,122.27 = 8,574,454.53 : x - Step 2: Convert to fraction form
15,098,729.33/20,838,122.27 = 8,574,454.53/x - Step 3: Cross multiply
15,098,729.33x = 20,838,122.27 × 8,574,454.53 - Step 4: Simplify right side
15,098,729.33x = 178,675,531,883,977.31 - Step 5: Solve for x
x = 178,675,531,883,977.31/15,098,729.33 - Step 6: Final answer
x = 11,833,812.50
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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.