Finding the Fourth Proportional to 268,786,792.56, 402,852,640.68 and 139,323,028.08
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Solution
The fourth proportional to 268,786,792.56, 402,852,640.68 and 139,323,028.08 is: 208,814,760.71
Step by Step Solution
- Step 1: Write the proportion equation
268,786,792.56 : 402,852,640.68 = 139,323,028.08 : x - Step 2: Convert to fraction form
268,786,792.56/402,852,640.68 = 139,323,028.08/x - Step 3: Cross multiply
268,786,792.56x = 402,852,640.68 × 139,323,028.08 - Step 4: Simplify right side
268,786,792.56x = 56,126,649,769,561,800 - Step 5: Solve for x
x = 56,126,649,769,561,800/268,786,792.56 - Step 6: Final answer
x = 208,814,760.71
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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.