Finding the Fourth Proportional to 18,854,491.71, 28,276,576.25 and 5,204,374.95
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Solution
The fourth proportional to 18,854,491.71, 28,276,576.25 and 5,204,374.95 is: 7,805,137.75
Step by Step Solution
- Step 1: Write the proportion equation
18,854,491.71 : 28,276,576.25 = 5,204,374.95 : x - Step 2: Convert to fraction form
18,854,491.71/28,276,576.25 = 5,204,374.95/x - Step 3: Cross multiply
18,854,491.71x = 28,276,576.25 × 5,204,374.95 - Step 4: Simplify right side
18,854,491.71x = 147,161,905,081,243.06 - Step 5: Solve for x
x = 147,161,905,081,243.06/18,854,491.71 - Step 6: Final answer
x = 7,805,137.75
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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.