Finding the Fourth Proportional to 28,403,141.94, 39,196,515.60 and 15,350,370.21
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Solution
The fourth proportional to 28,403,141.94, 39,196,515.60 and 15,350,370.21 is: 21,183,608.02
Step by Step Solution
- Step 1: Write the proportion equation
28,403,141.94 : 39,196,515.60 = 15,350,370.21 : x - Step 2: Convert to fraction form
28,403,141.94/39,196,515.60 = 15,350,370.21/x - Step 3: Cross multiply
28,403,141.94x = 39,196,515.60 × 15,350,370.21 - Step 4: Simplify right side
28,403,141.94x = 601,681,025,402,040.38 - Step 5: Solve for x
x = 601,681,025,402,040.38/28,403,141.94 - Step 6: Final answer
x = 21,183,608.02
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1.5x scale
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.