Finding the Fourth Proportional to 289,036,873.22, 398,871,180.24 and 156,877,896.99
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Solution
The fourth proportional to 289,036,873.22, 398,871,180.24 and 156,877,896.99 is: 216,491,658.07
Step by Step Solution
- Step 1: Write the proportion equation
289,036,873.22 : 398,871,180.24 = 156,877,896.99 : x - Step 2: Convert to fraction form
289,036,873.22/398,871,180.24 = 156,877,896.99/x - Step 3: Cross multiply
289,036,873.22x = 398,871,180.24 × 156,877,896.99 - Step 4: Simplify right side
289,036,873.22x = 62,574,071,925,970,448 - Step 5: Solve for x
x = 62,574,071,925,970,448/289,036,873.22 - Step 6: Final answer
x = 216,491,658.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.