Finding the Fourth Proportional to 72,242,851.80, 108,364,277.70 and 29,132,707.80
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Solution
The fourth proportional to 72,242,851.80, 108,364,277.70 and 29,132,707.80 is: 43,699,061.70
Step by Step Solution
- Step 1: Write the proportion equation
72,242,851.80 : 108,364,277.70 = 29,132,707.80 : x - Step 2: Convert to fraction form
72,242,851.80/108,364,277.70 = 29,132,707.80/x - Step 3: Cross multiply
72,242,851.80x = 108,364,277.70 × 29,132,707.80 - Step 4: Simplify right side
72,242,851.80x = 3,156,944,838,192,156 - Step 5: Solve for x
x = 3,156,944,838,192,156/72,242,851.80 - Step 6: Final answer
x = 43,699,061.70
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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.