Finding the Fourth Proportional to 66,052,701.18, 91,141,782.26 and 38,178,011.81
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Solution
The fourth proportional to 66,052,701.18, 91,141,782.26 and 38,178,011.81 is: 52,679,329.95
Step by Step Solution
- Step 1: Write the proportion equation
66,052,701.18 : 91,141,782.26 = 38,178,011.81 : x - Step 2: Convert to fraction form
66,052,701.18/91,141,782.26 = 38,178,011.81/x - Step 3: Cross multiply
66,052,701.18x = 91,141,782.26 × 38,178,011.81 - Step 4: Simplify right side
66,052,701.18x = 3,479,612,039,543,692.50 - Step 5: Solve for x
x = 3,479,612,039,543,692.50/66,052,701.18 - Step 6: Final answer
x = 52,679,329.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.