Finding the Fourth Proportional to 1,987,197,867.98, 2,742,253,216.37 and 1,082,934,600.67
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Solution
The fourth proportional to 1,987,197,867.98, 2,742,253,216.37 and 1,082,934,600.67 is: 1,494,406,238.88
Step by Step Solution
- Step 1: Write the proportion equation
1,987,197,867.98 : 2,742,253,216.37 = 1,082,934,600.67 : x - Step 2: Convert to fraction form
1,987,197,867.98/2,742,253,216.37 = 1,082,934,600.67/x - Step 3: Cross multiply
1,987,197,867.98x = 2,742,253,216.37 × 1,082,934,600.67 - Step 4: Simplify right side
1,987,197,867.98x = 2,969,680,891,791,957,504 - Step 5: Solve for x
x = 2,969,680,891,791,957,504/1,987,197,867.98 - Step 6: Final answer
x = 1,494,406,238.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.