Finding the Fourth Proportional to 12,878,876.96, 19,293,073.68 and 7,476,198.56
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Solution
The fourth proportional to 12,878,876.96, 19,293,073.68 and 7,476,198.56 is: 11,199,644.98
Step by Step Solution
- Step 1: Write the proportion equation
12,878,876.96 : 19,293,073.68 = 7,476,198.56 : x - Step 2: Convert to fraction form
12,878,876.96/19,293,073.68 = 7,476,198.56/x - Step 3: Cross multiply
12,878,876.96x = 19,293,073.68 × 7,476,198.56 - Step 4: Simplify right side
12,878,876.96x = 144,238,849,664,389.91 - Step 5: Solve for x
x = 144,238,849,664,389.91/12,878,876.96 - Step 6: Final answer
x = 11,199,644.98
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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.