Finding the Fourth Proportional to 13,412,665.10, 20,124,246.45 and 4,893,862.70
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Solution
The fourth proportional to 13,412,665.10, 20,124,246.45 and 4,893,862.70 is: 7,342,709.17
Step by Step Solution
- Step 1: Write the proportion equation
13,412,665.10 : 20,124,246.45 = 4,893,862.70 : x - Step 2: Convert to fraction form
13,412,665.10/20,124,246.45 = 4,893,862.70/x - Step 3: Cross multiply
13,412,665.10x = 20,124,246.45 × 4,893,862.70 - Step 4: Simplify right side
13,412,665.10x = 98,485,299,067,262.42 - Step 5: Solve for x
x = 98,485,299,067,262.42/13,412,665.10 - Step 6: Final answer
x = 7,342,709.17
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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.