Finding the Fourth Proportional to 120,399,547.08, 166,153,563.72 and 68,199,421.08
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Solution
The fourth proportional to 120,399,547.08, 166,153,563.72 and 68,199,421.08 is: 94,116,440.89
Step by Step Solution
- Step 1: Write the proportion equation
120,399,547.08 : 166,153,563.72 = 68,199,421.08 : x - Step 2: Convert to fraction form
120,399,547.08/166,153,563.72 = 68,199,421.08/x - Step 3: Cross multiply
120,399,547.08x = 166,153,563.72 × 68,199,421.08 - Step 4: Simplify right side
120,399,547.08x = 11,331,576,856,082,890 - Step 5: Solve for x
x = 11,331,576,856,082,890/120,399,547.08 - Step 6: Final answer
x = 94,116,440.89
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1.5x scale
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.