Finding the Fourth Proportional to 1,786,539,425.36, 2,465,492,431.35 and 993,642,739.38
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Solution
The fourth proportional to 1,786,539,425.36, 2,465,492,431.35 and 993,642,739.38 is: 1,371,264,814.33
Step by Step Solution
- Step 1: Write the proportion equation
1,786,539,425.36 : 2,465,492,431.35 = 993,642,739.38 : x - Step 2: Convert to fraction form
1,786,539,425.36/2,465,492,431.35 = 993,642,739.38/x - Step 3: Cross multiply
1,786,539,425.36x = 2,465,492,431.35 × 993,642,739.38 - Step 4: Simplify right side
1,786,539,425.36x = 2,449,818,653,407,270,400 - Step 5: Solve for x
x = 2,449,818,653,407,270,400/1,786,539,425.36 - Step 6: Final answer
x = 1,371,264,814.33
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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.