Finding the Fourth Proportional to 128,535,197.36, 177,312,984.38 and 82,076,604.08
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Solution
The fourth proportional to 128,535,197.36, 177,312,984.38 and 82,076,604.08 is: 113,223,832.20
Step by Step Solution
- Step 1: Write the proportion equation
128,535,197.36 : 177,312,984.38 = 82,076,604.08 : x - Step 2: Convert to fraction form
128,535,197.36/177,312,984.38 = 82,076,604.08/x - Step 3: Cross multiply
128,535,197.36x = 177,312,984.38 × 82,076,604.08 - Step 4: Simplify right side
128,535,197.36x = 14,553,247,617,200,484 - Step 5: Solve for x
x = 14,553,247,617,200,484/128,535,197.36 - Step 6: Final answer
x = 113,223,832.20
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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.