Finding the Fourth Proportional to 1,079,285,102.19, 1,489,423,709.34 and 633,256,054.11
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Solution
The fourth proportional to 1,079,285,102.19, 1,489,423,709.34 and 633,256,054.11 is: 873,899,379.47
Step by Step Solution
- Step 1: Write the proportion equation
1,079,285,102.19 : 1,489,423,709.34 = 633,256,054.11 : x - Step 2: Convert to fraction form
1,079,285,102.19/1,489,423,709.34 = 633,256,054.11/x - Step 3: Cross multiply
1,079,285,102.19x = 1,489,423,709.34 × 633,256,054.11 - Step 4: Simplify right side
1,079,285,102.19x = 943,186,581,074,527,872 - Step 5: Solve for x
x = 943,186,581,074,527,872/1,079,285,102.19 - Step 6: Final answer
x = 873,899,379.47
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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.