Finding the Fourth Proportional to 312,468,675.87, 468,794,022.99 and 139,905,133.05
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Solution
The fourth proportional to 312,468,675.87, 468,794,022.99 and 139,905,133.05 is: 209,898,448.15
Step by Step Solution
- Step 1: Write the proportion equation
312,468,675.87 : 468,794,022.99 = 139,905,133.05 : x - Step 2: Convert to fraction form
312,468,675.87/468,794,022.99 = 139,905,133.05/x - Step 3: Cross multiply
312,468,675.87x = 468,794,022.99 × 139,905,133.05 - Step 4: Simplify right side
312,468,675.87x = 65,586,690,160,694,040 - Step 5: Solve for x
x = 65,586,690,160,694,040/312,468,675.87 - Step 6: Final answer
x = 209,898,448.15
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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.