Finding the Fourth Proportional to 256,960,982.99, 354,606,606.37 and 139,486,392.80
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Solution
The fourth proportional to 256,960,982.99, 354,606,606.37 and 139,486,392.80 is: 192,491,466.26
Step by Step Solution
- Step 1: Write the proportion equation
256,960,982.99 : 354,606,606.37 = 139,486,392.80 : x - Step 2: Convert to fraction form
256,960,982.99/354,606,606.37 = 139,486,392.80/x - Step 3: Cross multiply
256,960,982.99x = 354,606,606.37 × 139,486,392.80 - Step 4: Simplify right side
256,960,982.99x = 49,462,796,385,600,808 - Step 5: Solve for x
x = 49,462,796,385,600,808/256,960,982.99 - Step 6: Final answer
x = 192,491,466.26
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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.