Finding the Fourth Proportional to 135,430,607.52, 186,910,193.28 and 80,426,464.02
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Solution
The fourth proportional to 135,430,607.52, 186,910,193.28 and 80,426,464.02 is: 110,997,995.28
Step by Step Solution
- Step 1: Write the proportion equation
135,430,607.52 : 186,910,193.28 = 80,426,464.02 : x - Step 2: Convert to fraction form
135,430,607.52/186,910,193.28 = 80,426,464.02/x - Step 3: Cross multiply
135,430,607.52x = 186,910,193.28 × 80,426,464.02 - Step 4: Simplify right side
135,430,607.52x = 15,032,525,934,805,166 - Step 5: Solve for x
x = 15,032,525,934,805,166/135,430,607.52 - Step 6: Final answer
x = 110,997,995.28
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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.