Finding the Fourth Proportional to 28,458,958.71, 39,273,354.73 and 15,406,207.95
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Solution
The fourth proportional to 28,458,958.71, 39,273,354.73 and 15,406,207.95 is: 21,260,562.48
Step by Step Solution
- Step 1: Write the proportion equation
28,458,958.71 : 39,273,354.73 = 15,406,207.95 : x - Step 2: Convert to fraction form
28,458,958.71/39,273,354.73 = 15,406,207.95/x - Step 3: Cross multiply
28,458,958.71x = 39,273,354.73 × 15,406,207.95 - Step 4: Simplify right side
28,458,958.71x = 605,053,469,864,496 - Step 5: Solve for x
x = 605,053,469,864,496/28,458,958.71 - Step 6: Final answer
x = 21,260,562.48
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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.