Finding the Fourth Proportional to 115,685,438.86, 159,646,208.84 and 62,762,143.80
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Solution
The fourth proportional to 115,685,438.86, 159,646,208.84 and 62,762,143.80 is: 86,611,922.94
Step by Step Solution
- Step 1: Write the proportion equation
115,685,438.86 : 159,646,208.84 = 62,762,143.80 : x - Step 2: Convert to fraction form
115,685,438.86/159,646,208.84 = 62,762,143.80/x - Step 3: Cross multiply
115,685,438.86x = 159,646,208.84 × 62,762,143.80 - Step 4: Simplify right side
115,685,438.86x = 10,019,738,316,340,910 - Step 5: Solve for x
x = 10,019,738,316,340,910/115,685,438.86 - Step 6: Final answer
x = 86,611,922.94
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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.