Finding the Fourth Proportional to 28,991,260.98, 43,486,900.11 and 8,520,984.18
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Solution
The fourth proportional to 28,991,260.98, 43,486,900.11 and 8,520,984.18 is: 12,781,478.81
Step by Step Solution
- Step 1: Write the proportion equation
28,991,260.98 : 43,486,900.11 = 8,520,984.18 : x - Step 2: Convert to fraction form
28,991,260.98/43,486,900.11 = 8,520,984.18/x - Step 3: Cross multiply
28,991,260.98x = 43,486,900.11 × 8,520,984.18 - Step 4: Simplify right side
28,991,260.98x = 370,551,187,874,550.25 - Step 5: Solve for x
x = 370,551,187,874,550.25/28,991,260.98 - Step 6: Final answer
x = 12,781,478.81
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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.