Finding the Fourth Proportional to 90,340,262.80, 135,434,213.68 and 39,183,752.12
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Solution
The fourth proportional to 90,340,262.80, 135,434,213.68 and 39,183,752.12 is: 58,742,586.01
Step by Step Solution
- Step 1: Write the proportion equation
90,340,262.80 : 135,434,213.68 = 39,183,752.12 : x - Step 2: Convert to fraction form
90,340,262.80/135,434,213.68 = 39,183,752.12/x - Step 3: Cross multiply
90,340,262.80x = 135,434,213.68 × 39,183,752.12 - Step 4: Simplify right side
90,340,262.80x = 5,306,820,657,404,233 - Step 5: Solve for x
x = 5,306,820,657,404,233/90,340,262.80 - Step 6: Final answer
x = 58,742,586.01
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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.