Finding the Fourth Proportional to 1,397,522,789.70, 2,094,503,857.20 and 742,787,477.70
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Solution
The fourth proportional to 1,397,522,789.70, 2,094,503,857.20 and 742,787,477.70 is: 1,113,234,967.32
Step by Step Solution
- Step 1: Write the proportion equation
1,397,522,789.70 : 2,094,503,857.20 = 742,787,477.70 : x - Step 2: Convert to fraction form
1,397,522,789.70/2,094,503,857.20 = 742,787,477.70/x - Step 3: Cross multiply
1,397,522,789.70x = 2,094,503,857.20 × 742,787,477.70 - Step 4: Simplify right side
1,397,522,789.70x = 1,555,771,237,122,509,056 - Step 5: Solve for x
x = 1,555,771,237,122,509,056/1,397,522,789.70 - Step 6: Final answer
x = 1,113,234,967.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.