Finding the Fourth Proportional to 28,991,260.48, 43,486,899.36 and 8,520,983.68
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Solution
The fourth proportional to 28,991,260.48, 43,486,899.36 and 8,520,983.68 is: 12,781,478.06
Step by Step Solution
- Step 1: Write the proportion equation
28,991,260.48 : 43,486,899.36 = 8,520,983.68 : x - Step 2: Convert to fraction form
28,991,260.48/43,486,899.36 = 8,520,983.68/x - Step 3: Cross multiply
28,991,260.48x = 43,486,899.36 × 8,520,983.68 - Step 4: Simplify right side
28,991,260.48x = 370,551,159,740,362.44 - Step 5: Solve for x
x = 370,551,159,740,362.44/28,991,260.48 - Step 6: Final answer
x = 12,781,478.06
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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.