Finding the Fourth Proportional to 20,331,307.08, 30,497,325.10 and 7,386,650.92
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Solution
The fourth proportional to 20,331,307.08, 30,497,325.10 and 7,386,650.92 is: 11,080,108.80
Step by Step Solution
- Step 1: Write the proportion equation
20,331,307.08 : 30,497,325.10 = 7,386,650.92 : x - Step 2: Convert to fraction form
20,331,307.08/30,497,325.10 = 7,386,650.92/x - Step 3: Cross multiply
20,331,307.08x = 30,497,325.10 × 7,386,650.92 - Step 4: Simplify right side
20,331,307.08x = 225,273,094,507,454.09 - Step 5: Solve for x
x = 225,273,094,507,454.09/20,331,307.08 - Step 6: Final answer
x = 11,080,108.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.