Finding the Fourth Proportional to 13,238,486.70, 19,857,730.05 and 4,715,747.70
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Solution
The fourth proportional to 13,238,486.70, 19,857,730.05 and 4,715,747.70 is: 7,073,621.55
Step by Step Solution
- Step 1: Write the proportion equation
13,238,486.70 : 19,857,730.05 = 4,715,747.70 : x - Step 2: Convert to fraction form
13,238,486.70/19,857,730.05 = 4,715,747.70/x - Step 3: Cross multiply
13,238,486.70x = 19,857,730.05 × 4,715,747.70 - Step 4: Simplify right side
13,238,486.70x = 93,644,044,810,508.39 - Step 5: Solve for x
x = 93,644,044,810,508.39/13,238,486.70 - Step 6: Final answer
x = 7,073,621.55
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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.