Finding the Fourth Proportional to 57,894,490.35, 79,894,396.98 and 31,789,008.09
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Solution
The fourth proportional to 57,894,490.35, 79,894,396.98 and 31,789,008.09 is: 43,868,831.33
Step by Step Solution
- Step 1: Write the proportion equation
57,894,490.35 : 79,894,396.98 = 31,789,008.09 : x - Step 2: Convert to fraction form
57,894,490.35/79,894,396.98 = 31,789,008.09/x - Step 3: Cross multiply
57,894,490.35x = 79,894,396.98 × 31,789,008.09 - Step 4: Simplify right side
57,894,490.35x = 2,539,763,631,942,891.50 - Step 5: Solve for x
x = 2,539,763,631,942,891.50/57,894,490.35 - Step 6: Final answer
x = 43,868,831.33
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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.