Finding the Fourth Proportional to 5,709,777.74, 7,879,991.59 and 3,131,956.74
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Solution
The fourth proportional to 5,709,777.74, 7,879,991.59 and 3,131,956.74 is: 4,322,373.63
Step by Step Solution
- Step 1: Write the proportion equation
5,709,777.74 : 7,879,991.59 = 3,131,956.74 : x - Step 2: Convert to fraction form
5,709,777.74/7,879,991.59 = 3,131,956.74/x - Step 3: Cross multiply
5,709,777.74x = 7,879,991.59 × 3,131,956.74 - Step 4: Simplify right side
5,709,777.74x = 24,679,792,716,384.07 - Step 5: Solve for x
x = 24,679,792,716,384.07/5,709,777.74 - Step 6: Final answer
x = 4,322,373.63
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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.