Finding the Fourth Proportional to 11,688,714.80, 16,119,981.96 and 7,338,206.42
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Solution
The fourth proportional to 11,688,714.80, 16,119,981.96 and 7,338,206.42 is: 10,120,167.80
Step by Step Solution
- Step 1: Write the proportion equation
11,688,714.80 : 16,119,981.96 = 7,338,206.42 : x - Step 2: Convert to fraction form
11,688,714.80/16,119,981.96 = 7,338,206.42/x - Step 3: Cross multiply
11,688,714.80x = 16,119,981.96 × 7,338,206.42 - Step 4: Simplify right side
11,688,714.80x = 118,291,755,109,156.19 - Step 5: Solve for x
x = 118,291,755,109,156.19/11,688,714.80 - Step 6: Final answer
x = 10,120,167.80
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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.