Finding the Fourth Proportional to 143,851,682.16, 198,517,497.87 and 81,970,701.84
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Solution
The fourth proportional to 143,851,682.16, 198,517,497.87 and 81,970,701.84 is: 113,120,808.76
Step by Step Solution
- Step 1: Write the proportion equation
143,851,682.16 : 198,517,497.87 = 81,970,701.84 : x - Step 2: Convert to fraction form
143,851,682.16/198,517,497.87 = 81,970,701.84/x - Step 3: Cross multiply
143,851,682.16x = 198,517,497.87 × 81,970,701.84 - Step 4: Simplify right side
143,851,682.16x = 16,272,618,627,924,606 - Step 5: Solve for x
x = 16,272,618,627,924,606/143,851,682.16 - Step 6: Final answer
x = 113,120,808.76
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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.