Finding the Fourth Proportional to 124,578,341.70, 186,867,512.55 and 55,491,011.70
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Solution
The fourth proportional to 124,578,341.70, 186,867,512.55 and 55,491,011.70 is: 83,236,517.55
Step by Step Solution
- Step 1: Write the proportion equation
124,578,341.70 : 186,867,512.55 = 55,491,011.70 : x - Step 2: Convert to fraction form
124,578,341.70/186,867,512.55 = 55,491,011.70/x - Step 3: Cross multiply
124,578,341.70x = 186,867,512.55 × 55,491,011.70 - Step 4: Simplify right side
124,578,341.70x = 10,369,467,325,261,948 - Step 5: Solve for x
x = 10,369,467,325,261,948/124,578,341.70 - Step 6: Final answer
x = 83,236,517.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.