Finding the Fourth Proportional to 143,216,936.36, 197,663,074.98 and 84,493,958.12
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Solution
The fourth proportional to 143,216,936.36, 197,663,074.98 and 84,493,958.12 is: 116,615,646.19
Step by Step Solution
- Step 1: Write the proportion equation
143,216,936.36 : 197,663,074.98 = 84,493,958.12 : x - Step 2: Convert to fraction form
143,216,936.36/197,663,074.98 = 84,493,958.12/x - Step 3: Cross multiply
143,216,936.36x = 197,663,074.98 × 84,493,958.12 - Step 4: Simplify right side
143,216,936.36x = 16,701,335,579,230,540 - Step 5: Solve for x
x = 16,701,335,579,230,540/143,216,936.36 - Step 6: Final answer
x = 116,615,646.19
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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.