Finding the Fourth Proportional to 79,146,021.80, 118,719,032.70 and 48,912,933.80
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Solution
The fourth proportional to 79,146,021.80, 118,719,032.70 and 48,912,933.80 is: 73,369,400.70
Step by Step Solution
- Step 1: Write the proportion equation
79,146,021.80 : 118,719,032.70 = 48,912,933.80 : x - Step 2: Convert to fraction form
79,146,021.80/118,719,032.70 = 48,912,933.80/x - Step 3: Cross multiply
79,146,021.80x = 118,719,032.70 × 48,912,933.80 - Step 4: Simplify right side
79,146,021.80x = 5,806,896,187,255,135 - Step 5: Solve for x
x = 5,806,896,187,255,135/79,146,021.80 - Step 6: Final answer
x = 73,369,400.70
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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.