Finding the Fourth Proportional to 78,481,727.92, 117,643,455.20 and 49,356,381.99
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Solution
The fourth proportional to 78,481,727.92, 117,643,455.20 and 49,356,381.99 is: 73,984,804.71
Step by Step Solution
- Step 1: Write the proportion equation
78,481,727.92 : 117,643,455.20 = 49,356,381.99 : x - Step 2: Convert to fraction form
78,481,727.92/117,643,455.20 = 49,356,381.99/x - Step 3: Cross multiply
78,481,727.92x = 117,643,455.20 × 49,356,381.99 - Step 4: Simplify right side
78,481,727.92x = 5,806,455,313,100,078 - Step 5: Solve for x
x = 5,806,455,313,100,078/78,481,727.92 - Step 6: Final answer
x = 73,984,804.71
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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.