Finding the Fourth Proportional to 68,287,889.16, 94,239,739.98 and 38,923,652.52
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Solution
The fourth proportional to 68,287,889.16, 94,239,739.98 and 38,923,652.52 is: 53,716,038.64
Step by Step Solution
- Step 1: Write the proportion equation
68,287,889.16 : 94,239,739.98 = 38,923,652.52 : x - Step 2: Convert to fraction form
68,287,889.16/94,239,739.98 = 38,923,652.52/x - Step 3: Cross multiply
68,287,889.16x = 94,239,739.98 × 38,923,652.52 - Step 4: Simplify right side
68,287,889.16x = 3,668,154,892,556,672 - Step 5: Solve for x
x = 3,668,154,892,556,672/68,287,889.16 - Step 6: Final answer
x = 53,716,038.64
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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.