Finding the Fourth Proportional to 65,842,463.20, 90,861,615.12 and 36,473,707.84
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Solution
The fourth proportional to 65,842,463.20, 90,861,615.12 and 36,473,707.84 is: 50,333,171.68
Step by Step Solution
- Step 1: Write the proportion equation
65,842,463.20 : 90,861,615.12 = 36,473,707.84 : x - Step 2: Convert to fraction form
65,842,463.20/90,861,615.12 = 36,473,707.84/x - Step 3: Cross multiply
65,842,463.20x = 90,861,615.12 × 36,473,707.84 - Step 4: Simplify right side
65,842,463.20x = 3,314,060,003,757,407 - Step 5: Solve for x
x = 3,314,060,003,757,407/65,842,463.20 - Step 6: Final answer
x = 50,333,171.68
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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.