Finding the Fourth Proportional to 10,921,538.12, 15,074,720.70 and 6,339,335.72
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Solution
The fourth proportional to 10,921,538.12, 15,074,720.70 and 6,339,335.72 is: 8,750,023.52
Step by Step Solution
- Step 1: Write the proportion equation
10,921,538.12 : 15,074,720.70 = 6,339,335.72 : x - Step 2: Convert to fraction form
10,921,538.12/15,074,720.70 = 6,339,335.72/x - Step 3: Cross multiply
10,921,538.12x = 15,074,720.70 × 6,339,335.72 - Step 4: Simplify right side
10,921,538.12x = 95,563,715,402,533.39 - Step 5: Solve for x
x = 95,563,715,402,533.39/10,921,538.12 - Step 6: Final answer
x = 8,750,023.52
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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.