Finding the Fourth Proportional to 97,176,630.49, 133,389,921.56 and 85,916,724.30
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Solution
The fourth proportional to 97,176,630.49, 133,389,921.56 and 85,916,724.30 is: 117,933,962.69
Step by Step Solution
- Step 1: Write the proportion equation
97,176,630.49 : 133,389,921.56 = 85,916,724.30 : x - Step 2: Convert to fraction form
97,176,630.49/133,389,921.56 = 85,916,724.30/x - Step 3: Cross multiply
97,176,630.49x = 133,389,921.56 × 85,916,724.30 - Step 4: Simplify right side
97,176,630.49x = 11,460,425,114,639,562 - Step 5: Solve for x
x = 11,460,425,114,639,562/97,176,630.49 - Step 6: Final answer
x = 117,933,962.69
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.