Finding the Fourth Proportional to 31,977,980.64, 44,117,217.84 and 20,373,466.08
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Solution
The fourth proportional to 31,977,980.64, 44,117,217.84 and 20,373,466.08 is: 28,107,485.94
Step by Step Solution
- Step 1: Write the proportion equation
31,977,980.64 : 44,117,217.84 = 20,373,466.08 : x - Step 2: Convert to fraction form
31,977,980.64/44,117,217.84 = 20,373,466.08/x - Step 3: Cross multiply
31,977,980.64x = 44,117,217.84 × 20,373,466.08 - Step 4: Simplify right side
31,977,980.64x = 898,820,641,207,210.88 - Step 5: Solve for x
x = 898,820,641,207,210.88/31,977,980.64 - Step 6: Final answer
x = 28,107,485.94
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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.