Finding the Fourth Proportional to 1,244,882,538.24, 1,717,939,576.80 and 716,235,921.45
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Solution
The fourth proportional to 1,244,882,538.24, 1,717,939,576.80 and 716,235,921.45 is: 988,406,534.74
Step by Step Solution
- Step 1: Write the proportion equation
1,244,882,538.24 : 1,717,939,576.80 = 716,235,921.45 : x - Step 2: Convert to fraction form
1,244,882,538.24/1,717,939,576.80 = 716,235,921.45/x - Step 3: Cross multiply
1,244,882,538.24x = 1,717,939,576.80 × 716,235,921.45 - Step 4: Simplify right side
1,244,882,538.24x = 1,230,450,035,784,771,072 - Step 5: Solve for x
x = 1,230,450,035,784,771,072/1,244,882,538.24 - Step 6: Final answer
x = 988,406,534.74
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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.