Finding the Fourth Proportional to 256,961,516.84, 354,607,346.50 and 139,486,928.44
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Solution
The fourth proportional to 256,961,516.84, 354,607,346.50 and 139,486,928.44 is: 192,492,207.29
Step by Step Solution
- Step 1: Write the proportion equation
256,961,516.84 : 354,607,346.50 = 139,486,928.44 : x - Step 2: Convert to fraction form
256,961,516.84/354,607,346.50 = 139,486,928.44/x - Step 3: Cross multiply
256,961,516.84x = 354,607,346.50 × 139,486,928.44 - Step 4: Simplify right side
256,961,516.84x = 49,463,089,565,543,784 - Step 5: Solve for x
x = 49,463,089,565,543,784/256,961,516.84 - Step 6: Final answer
x = 192,492,207.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.