Finding the Fourth Proportional to 99,903,446.12, 149,786,973.36 and 53,223,911.30
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Solution
The fourth proportional to 99,903,446.12, 149,786,973.36 and 53,223,911.30 is: 79,799,535.39
Step by Step Solution
- Step 1: Write the proportion equation
99,903,446.12 : 149,786,973.36 = 53,223,911.30 : x - Step 2: Convert to fraction form
99,903,446.12/149,786,973.36 = 53,223,911.30/x - Step 3: Cross multiply
99,903,446.12x = 149,786,973.36 × 53,223,911.30 - Step 4: Simplify right side
99,903,446.12x = 7,972,248,584,008,103 - Step 5: Solve for x
x = 7,972,248,584,008,103/99,903,446.12 - Step 6: Final answer
x = 79,799,535.39
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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.