Finding the Fourth Proportional to 9,513,475.12, 13,128,595.72 and 5,162,561.44
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Solution
The fourth proportional to 9,513,475.12, 13,128,595.72 and 5,162,561.44 is: 7,124,334.82
Step by Step Solution
- Step 1: Write the proportion equation
9,513,475.12 : 13,128,595.72 = 5,162,561.44 : x - Step 2: Convert to fraction form
9,513,475.12/13,128,595.72 = 5,162,561.44/x - Step 3: Cross multiply
9,513,475.12x = 13,128,595.72 × 5,162,561.44 - Step 4: Simplify right side
9,513,475.12x = 67,777,182,025,421.05 - Step 5: Solve for x
x = 67,777,182,025,421.05/9,513,475.12 - Step 6: Final answer
x = 7,124,334.82
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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.