Finding the Fourth Proportional to 1,244,882,541.70, 1,717,939,581.60 and 716,235,924.93
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Solution
The fourth proportional to 1,244,882,541.70, 1,717,939,581.60 and 716,235,924.93 is: 988,406,539.56
Step by Step Solution
- Step 1: Write the proportion equation
1,244,882,541.70 : 1,717,939,581.60 = 716,235,924.93 : x - Step 2: Convert to fraction form
1,244,882,541.70/1,717,939,581.60 = 716,235,924.93/x - Step 3: Cross multiply
1,244,882,541.70x = 1,717,939,581.60 × 716,235,924.93 - Step 4: Simplify right side
1,244,882,541.70x = 1,230,450,045,197,340,928 - Step 5: Solve for x
x = 1,230,450,045,197,340,928/1,244,882,541.70 - Step 6: Final answer
x = 988,406,539.56
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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.