Finding the Fourth Proportional to 43,578,252.20, 65,199,416.70 and 28,461,708.20
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Solution
The fourth proportional to 43,578,252.20, 65,199,416.70 and 28,461,708.20 is: 42,582,863.68
Step by Step Solution
- Step 1: Write the proportion equation
43,578,252.20 : 65,199,416.70 = 28,461,708.20 : x - Step 2: Convert to fraction form
43,578,252.20/65,199,416.70 = 28,461,708.20/x - Step 3: Cross multiply
43,578,252.20x = 65,199,416.70 × 28,461,708.20 - Step 4: Simplify right side
43,578,252.20x = 1,855,686,772,925,607 - Step 5: Solve for x
x = 1,855,686,772,925,607/43,578,252.20 - Step 6: Final answer
x = 42,582,863.68
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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.