Finding the Fourth Proportional to 7,438,336.65, 10,264,558.97 and 4,130,840.86
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Solution
The fourth proportional to 7,438,336.65, 10,264,558.97 and 4,130,840.86 is: 5,700,368.45
Step by Step Solution
- Step 1: Write the proportion equation
7,438,336.65 : 10,264,558.97 = 4,130,840.86 : x - Step 2: Convert to fraction form
7,438,336.65/10,264,558.97 = 4,130,840.86/x - Step 3: Cross multiply
7,438,336.65x = 10,264,558.97 × 4,130,840.86 - Step 4: Simplify right side
7,438,336.65x = 42,401,259,587,821.22 - Step 5: Solve for x
x = 42,401,259,587,821.22/7,438,336.65 - Step 6: Final answer
x = 5,700,368.45
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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.