Finding the Fourth Proportional to 27,995,753.12, 38,634,139.08 and 15,118,697.12
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Solution
The fourth proportional to 27,995,753.12, 38,634,139.08 and 15,118,697.12 is: 20,863,801.90
Step by Step Solution
- Step 1: Write the proportion equation
27,995,753.12 : 38,634,139.08 = 15,118,697.12 : x - Step 2: Convert to fraction form
27,995,753.12/38,634,139.08 = 15,118,697.12/x - Step 3: Cross multiply
27,995,753.12x = 38,634,139.08 × 15,118,697.12 - Step 4: Simplify right side
27,995,753.12x = 584,097,847,242,475.38 - Step 5: Solve for x
x = 584,097,847,242,475.38/27,995,753.12 - Step 6: Final answer
x = 20,863,801.90
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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.