Finding the Fourth Proportional to 198,348,831.92, 297,352,832.52 and 68,939,637.68
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Solution
The fourth proportional to 198,348,831.92, 297,352,832.52 and 68,939,637.68 is: 103,350,225.65
Step by Step Solution
- Step 1: Write the proportion equation
198,348,831.92 : 297,352,832.52 = 68,939,637.68 : x - Step 2: Convert to fraction form
198,348,831.92/297,352,832.52 = 68,939,637.68/x - Step 3: Cross multiply
198,348,831.92x = 297,352,832.52 × 68,939,637.68 - Step 4: Simplify right side
198,348,831.92x = 20,499,396,537,050,524 - Step 5: Solve for x
x = 20,499,396,537,050,524/198,348,831.92 - Step 6: Final answer
x = 103,350,225.65
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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.