Finding the Fourth Proportional to 1,031,723,311.68, 1,423,764,079.11 and 585,682,780.86
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Solution
The fourth proportional to 1,031,723,311.68, 1,423,764,079.11 and 585,682,780.86 is: 808,234,238.48
Step by Step Solution
- Step 1: Write the proportion equation
1,031,723,311.68 : 1,423,764,079.11 = 585,682,780.86 : x - Step 2: Convert to fraction form
1,031,723,311.68/1,423,764,079.11 = 585,682,780.86/x - Step 3: Cross multiply
1,031,723,311.68x = 1,423,764,079.11 × 585,682,780.86 - Step 4: Simplify right side
1,031,723,311.68x = 833,874,105,141,721,856 - Step 5: Solve for x
x = 833,874,105,141,721,856/1,031,723,311.68 - Step 6: Final answer
x = 808,234,238.48
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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.