Finding the Fourth Proportional to 107,838,995.20, 161,758,492.80 and 88,691,372.80
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Solution
The fourth proportional to 107,838,995.20, 161,758,492.80 and 88,691,372.80 is: 133,037,059.20
Step by Step Solution
- Step 1: Write the proportion equation
107,838,995.20 : 161,758,492.80 = 88,691,372.80 : x - Step 2: Convert to fraction form
107,838,995.20/161,758,492.80 = 88,691,372.80/x - Step 3: Cross multiply
107,838,995.20x = 161,758,492.80 × 88,691,372.80 - Step 4: Simplify right side
107,838,995.20x = 14,346,582,788,490,916 - Step 5: Solve for x
x = 14,346,582,788,490,916/107,838,995.20 - Step 6: Final answer
x = 133,037,059.20
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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.