Finding the Fourth Proportional to 154,158,324.84, 212,718,823.65 and 88,083,101.34
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Solution
The fourth proportional to 154,158,324.84, 212,718,823.65 and 88,083,101.34 is: 121,543,443.86
Step by Step Solution
- Step 1: Write the proportion equation
154,158,324.84 : 212,718,823.65 = 88,083,101.34 : x - Step 2: Convert to fraction form
154,158,324.84/212,718,823.65 = 88,083,101.34/x - Step 3: Cross multiply
154,158,324.84x = 212,718,823.65 × 88,083,101.34 - Step 4: Simplify right side
154,158,324.84x = 18,736,933,700,488,540 - Step 5: Solve for x
x = 18,736,933,700,488,540/154,158,324.84 - Step 6: Final answer
x = 121,543,443.86
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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.