Finding the Fourth Proportional to 28,331,942.86, 42,493,159.99 and 7,863,741.82
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Solution
The fourth proportional to 28,331,942.86, 42,493,159.99 and 7,863,741.82 is: 11,794,293.14
Step by Step Solution
- Step 1: Write the proportion equation
28,331,942.86 : 42,493,159.99 = 7,863,741.82 : x - Step 2: Convert to fraction form
28,331,942.86/42,493,159.99 = 7,863,741.82/x - Step 3: Cross multiply
28,331,942.86x = 42,493,159.99 × 7,863,741.82 - Step 4: Simplify right side
28,331,942.86x = 334,155,239,277,313.81 - Step 5: Solve for x
x = 334,155,239,277,313.81/28,331,942.86 - Step 6: Final answer
x = 11,794,293.14
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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.