Finding the Fourth Proportional to 145,734,861.17, 201,113,620.16 and 79,655,321.18
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Solution
The fourth proportional to 145,734,861.17, 201,113,620.16 and 79,655,321.18 is: 109,924,076.36
Step by Step Solution
- Step 1: Write the proportion equation
145,734,861.17 : 201,113,620.16 = 79,655,321.18 : x - Step 2: Convert to fraction form
145,734,861.17/201,113,620.16 = 79,655,321.18/x - Step 3: Cross multiply
145,734,861.17x = 201,113,620.16 × 79,655,321.18 - Step 4: Simplify right side
145,734,861.17x = 16,019,770,007,621,832 - Step 5: Solve for x
x = 16,019,770,007,621,832/145,734,861.17 - Step 6: Final answer
x = 109,924,076.36
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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.