Finding the Fourth Proportional to 131,919,165.80, 197,878,748.70 and 97,906,941.80
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Solution
The fourth proportional to 131,919,165.80, 197,878,748.70 and 97,906,941.80 is: 146,860,412.70
Step by Step Solution
- Step 1: Write the proportion equation
131,919,165.80 : 197,878,748.70 = 97,906,941.80 : x - Step 2: Convert to fraction form
131,919,165.80/197,878,748.70 = 97,906,941.80/x - Step 3: Cross multiply
131,919,165.80x = 197,878,748.70 × 97,906,941.80 - Step 4: Simplify right side
131,919,165.80x = 19,373,703,132,427,724 - Step 5: Solve for x
x = 19,373,703,132,427,724/131,919,165.80 - Step 6: Final answer
x = 146,860,412.70
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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.