Finding the Fourth Proportional to 139,008,948.41, 207,285,262.79 and 137,761,266.11
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Solution
The fourth proportional to 139,008,948.41, 207,285,262.79 and 137,761,266.11 is: 205,424,762.75
Step by Step Solution
- Step 1: Write the proportion equation
139,008,948.41 : 207,285,262.79 = 137,761,266.11 : x - Step 2: Convert to fraction form
139,008,948.41/207,285,262.79 = 137,761,266.11/x - Step 3: Cross multiply
139,008,948.41x = 207,285,262.79 × 137,761,266.11 - Step 4: Simplify right side
139,008,948.41x = 28,555,880,247,894,472 - Step 5: Solve for x
x = 28,555,880,247,894,472/139,008,948.41 - Step 6: Final answer
x = 205,424,762.75
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.