Finding the Fourth Proportional to 290,764,660.63, 436,150,789.91 and 96,676,075.81
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Solution
The fourth proportional to 290,764,660.63, 436,150,789.91 and 96,676,075.81 is: 145,015,376.83
Step by Step Solution
- Step 1: Write the proportion equation
290,764,660.63 : 436,150,789.91 = 96,676,075.81 : x - Step 2: Convert to fraction form
290,764,660.63/436,150,789.91 = 96,676,075.81/x - Step 3: Cross multiply
290,764,660.63x = 436,150,789.91 × 96,676,075.81 - Step 4: Simplify right side
290,764,660.63x = 42,165,346,829,930,544 - Step 5: Solve for x
x = 42,165,346,829,930,544/290,764,660.63 - Step 6: Final answer
x = 145,015,376.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.