Finding the Fourth Proportional to 15,009,700.68, 20,713,404.66 and 8,134,182.74
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Solution
The fourth proportional to 15,009,700.68, 20,713,404.66 and 8,134,182.74 is: 11,225,181.79
Step by Step Solution
- Step 1: Write the proportion equation
15,009,700.68 : 20,713,404.66 = 8,134,182.74 : x - Step 2: Convert to fraction form
15,009,700.68/20,713,404.66 = 8,134,182.74/x - Step 3: Cross multiply
15,009,700.68x = 20,713,404.66 × 8,134,182.74 - Step 4: Simplify right side
15,009,700.68x = 168,486,618,672,007.56 - Step 5: Solve for x
x = 168,486,618,672,007.56/15,009,700.68 - Step 6: Final answer
x = 11,225,181.79
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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.