Finding the Fourth Proportional to 87,999,197.10, 121,445,029.99 and 58,178,033.47
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Solution
The fourth proportional to 87,999,197.10, 121,445,029.99 and 58,178,033.47 is: 80,289,744.14
Step by Step Solution
- Step 1: Write the proportion equation
87,999,197.10 : 121,445,029.99 = 58,178,033.47 : x - Step 2: Convert to fraction form
87,999,197.10/121,445,029.99 = 58,178,033.47/x - Step 3: Cross multiply
87,999,197.10x = 121,445,029.99 × 58,178,033.47 - Step 4: Simplify right side
87,999,197.10x = 7,065,433,019,523,373 - Step 5: Solve for x
x = 7,065,433,019,523,373/87,999,197.10 - Step 6: Final answer
x = 80,289,744.14
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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.