Finding the Fourth Proportional to 1,987,197,865.06, 2,742,253,212.33 and 1,082,934,597.74
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Solution
The fourth proportional to 1,987,197,865.06, 2,742,253,212.33 and 1,082,934,597.74 is: 1,494,406,234.84
Step by Step Solution
- Step 1: Write the proportion equation
1,987,197,865.06 : 2,742,253,212.33 = 1,082,934,597.74 : x - Step 2: Convert to fraction form
1,987,197,865.06/2,742,253,212.33 = 1,082,934,597.74/x - Step 3: Cross multiply
1,987,197,865.06x = 2,742,253,212.33 × 1,082,934,597.74 - Step 4: Simplify right side
1,987,197,865.06x = 2,969,680,879,395,811,328 - Step 5: Solve for x
x = 2,969,680,879,395,811,328/1,987,197,865.06 - Step 6: Final answer
x = 1,494,406,234.84
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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.