Finding the Fourth Proportional to 38,178,028.00, 57,276,008.70 and 12,619,034.68
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Solution
The fourth proportional to 38,178,028.00, 57,276,008.70 and 12,619,034.68 is: 18,931,515.79
Step by Step Solution
- Step 1: Write the proportion equation
38,178,028.00 : 57,276,008.70 = 12,619,034.68 : x - Step 2: Convert to fraction form
38,178,028.00/57,276,008.70 = 12,619,034.68/x - Step 3: Cross multiply
38,178,028.00x = 57,276,008.70 × 12,619,034.68 - Step 4: Simplify right side
38,178,028.00x = 722,767,939,830,901.75 - Step 5: Solve for x
x = 722,767,939,830,901.75/38,178,028.00 - Step 6: Final answer
x = 18,931,515.79
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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.