Finding the Fourth Proportional to 85,407,975.99, 128,085,467.74 and 30,813,464.41
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Solution
The fourth proportional to 85,407,975.99, 128,085,467.74 and 30,813,464.41 is: 46,210,637.30
Step by Step Solution
- Step 1: Write the proportion equation
85,407,975.99 : 128,085,467.74 = 30,813,464.41 : x - Step 2: Convert to fraction form
85,407,975.99/128,085,467.74 = 30,813,464.41/x - Step 3: Cross multiply
85,407,975.99x = 128,085,467.74 × 30,813,464.41 - Step 4: Simplify right side
85,407,975.99x = 3,946,757,001,247,445.50 - Step 5: Solve for x
x = 3,946,757,001,247,445.50/85,407,975.99 - Step 6: Final answer
x = 46,210,637.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.