Finding the Fourth Proportional to 20,783,552.24, 31,167,355.80 and 7,134,155.12
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Solution
The fourth proportional to 20,783,552.24, 31,167,355.80 and 7,134,155.12 is: 10,698,496.02
Step by Step Solution
- Step 1: Write the proportion equation
20,783,552.24 : 31,167,355.80 = 7,134,155.12 : x - Step 2: Convert to fraction form
20,783,552.24/31,167,355.80 = 7,134,155.12/x - Step 3: Cross multiply
20,783,552.24x = 31,167,355.80 × 7,134,155.12 - Step 4: Simplify right side
20,783,552.24x = 222,352,750,957,431.72 - Step 5: Solve for x
x = 222,352,750,957,431.72/20,783,552.24 - Step 6: Final answer
x = 10,698,496.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.