Finding the Fourth Proportional to 55,717,678.95, 76,890,396.69 and 31,271,392.95
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Solution
The fourth proportional to 55,717,678.95, 76,890,396.69 and 31,271,392.95 is: 43,154,522.12
Step by Step Solution
- Step 1: Write the proportion equation
55,717,678.95 : 76,890,396.69 = 31,271,392.95 : x - Step 2: Convert to fraction form
55,717,678.95/76,890,396.69 = 31,271,392.95/x - Step 3: Cross multiply
55,717,678.95x = 76,890,396.69 × 31,271,392.95 - Step 4: Simplify right side
55,717,678.95x = 2,404,469,808,974,369 - Step 5: Solve for x
x = 2,404,469,808,974,369/55,717,678.95 - Step 6: Final answer
x = 43,154,522.12
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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.