Finding the Fourth Proportional to 28,828,334.67, 39,783,097.84 and 15,775,590.14
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Solution
The fourth proportional to 28,828,334.67, 39,783,097.84 and 15,775,590.14 is: 21,770,312.20
Step by Step Solution
- Step 1: Write the proportion equation
28,828,334.67 : 39,783,097.84 = 15,775,590.14 : x - Step 2: Convert to fraction form
28,828,334.67/39,783,097.84 = 15,775,590.14/x - Step 3: Cross multiply
28,828,334.67x = 39,783,097.84 × 15,775,590.14 - Step 4: Simplify right side
28,828,334.67x = 627,601,846,023,359.38 - Step 5: Solve for x
x = 627,601,846,023,359.38/28,828,334.67 - Step 6: Final answer
x = 21,770,312.20
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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.