Finding the Fourth Proportional to 28,458,921.11, 39,273,302.86 and 15,406,170.41
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Solution
The fourth proportional to 28,458,921.11, 39,273,302.86 and 15,406,170.41 is: 21,260,510.69
Step by Step Solution
- Step 1: Write the proportion equation
28,458,921.11 : 39,273,302.86 = 15,406,170.41 : x - Step 2: Convert to fraction form
28,458,921.11/39,273,302.86 = 15,406,170.41/x - Step 3: Cross multiply
28,458,921.11x = 39,273,302.86 × 15,406,170.41 - Step 4: Simplify right side
28,458,921.11x = 605,051,196,460,591.38 - Step 5: Solve for x
x = 605,051,196,460,591.38/28,458,921.11 - Step 6: Final answer
x = 21,260,510.69
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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.