Finding the Fourth Proportional to 84,340,830.40, 126,427,264.80 and 38,823,236.80
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Solution
The fourth proportional to 84,340,830.40, 126,427,264.80 and 38,823,236.80 is: 58,196,197.69
Step by Step Solution
- Step 1: Write the proportion equation
84,340,830.40 : 126,427,264.80 = 38,823,236.80 : x - Step 2: Convert to fraction form
84,340,830.40/126,427,264.80 = 38,823,236.80/x - Step 3: Cross multiply
84,340,830.40x = 126,427,264.80 × 38,823,236.80 - Step 4: Simplify right side
84,340,830.40x = 4,908,315,639,306,704 - Step 5: Solve for x
x = 4,908,315,639,306,704/84,340,830.40 - Step 6: Final answer
x = 58,196,197.69
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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.