Finding the Fourth Proportional to 7,165,363.20, 10,748,044.80 and 4,331,011.20
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Solution
The fourth proportional to 7,165,363.20, 10,748,044.80 and 4,331,011.20 is: 6,496,516.80
Step by Step Solution
- Step 1: Write the proportion equation
7,165,363.20 : 10,748,044.80 = 4,331,011.20 : x - Step 2: Convert to fraction form
7,165,363.20/10,748,044.80 = 4,331,011.20/x - Step 3: Cross multiply
7,165,363.20x = 10,748,044.80 × 4,331,011.20 - Step 4: Simplify right side
7,165,363.20x = 46,549,902,406,901.77 - Step 5: Solve for x
x = 46,549,902,406,901.77/7,165,363.20 - Step 6: Final answer
x = 6,496,516.80
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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.