Finding the Fourth Proportional to 56,343,829.40, 84,578,729.70 and 43,620,738.20
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Solution
The fourth proportional to 56,343,829.40, 84,578,729.70 and 43,620,738.20 is: 65,479,870.02
Step by Step Solution
- Step 1: Write the proportion equation
56,343,829.40 : 84,578,729.70 = 43,620,738.20 : x - Step 2: Convert to fraction form
56,343,829.40/84,578,729.70 = 43,620,738.20/x - Step 3: Cross multiply
56,343,829.40x = 84,578,729.70 × 43,620,738.20 - Step 4: Simplify right side
56,343,829.40x = 3,689,386,625,532,265 - Step 5: Solve for x
x = 3,689,386,625,532,265/56,343,829.40 - Step 6: Final answer
x = 65,479,870.02
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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.