Finding the Fourth Proportional to 28,244,518.20, 42,366,777.30 and 8,047,135.80
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Solution
The fourth proportional to 28,244,518.20, 42,366,777.30 and 8,047,135.80 is: 12,070,703.70
Step by Step Solution
- Step 1: Write the proportion equation
28,244,518.20 : 42,366,777.30 = 8,047,135.80 : x - Step 2: Convert to fraction form
28,244,518.20/42,366,777.30 = 8,047,135.80/x - Step 3: Cross multiply
28,244,518.20x = 42,366,777.30 × 8,047,135.80 - Step 4: Simplify right side
28,244,518.20x = 340,931,210,341,457.31 - Step 5: Solve for x
x = 340,931,210,341,457.31/28,244,518.20 - Step 6: Final answer
x = 12,070,703.70
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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.