Finding the Fourth Proportional to 154,729,794.34, 213,528,241.84 and 84,166,013.80
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Solution
The fourth proportional to 154,729,794.34, 213,528,241.84 and 84,166,013.80 is: 116,149,711.35
Step by Step Solution
- Step 1: Write the proportion equation
154,729,794.34 : 213,528,241.84 = 84,166,013.80 : x - Step 2: Convert to fraction form
154,729,794.34/213,528,241.84 = 84,166,013.80/x - Step 3: Cross multiply
154,729,794.34x = 213,528,241.84 × 84,166,013.80 - Step 4: Simplify right side
154,729,794.34x = 17,971,820,949,395,178 - Step 5: Solve for x
x = 17,971,820,949,395,178/154,729,794.34 - Step 6: Final answer
x = 116,149,711.35
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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.