Finding the Fourth Proportional to 299,559,986.10, 449,339,979.15 and 248,499,659.70
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Solution
The fourth proportional to 299,559,986.10, 449,339,979.15 and 248,499,659.70 is: 372,749,489.55
Step by Step Solution
- Step 1: Write the proportion equation
299,559,986.10 : 449,339,979.15 = 248,499,659.70 : x - Step 2: Convert to fraction form
299,559,986.10/449,339,979.15 = 248,499,659.70/x - Step 3: Cross multiply
299,559,986.10x = 449,339,979.15 × 248,499,659.70 - Step 4: Simplify right side
299,559,986.10x = 111,660,831,908,380,080 - Step 5: Solve for x
x = 111,660,831,908,380,080/299,559,986.10 - Step 6: Final answer
x = 372,749,489.55
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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.