Finding the Fourth Proportional to 479,217,845.70, 717,818,998.95 and 398,596,277.70
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Solution
The fourth proportional to 479,217,845.70, 717,818,998.95 and 398,596,277.70 is: 597,056,189.81
Step by Step Solution
- Step 1: Write the proportion equation
479,217,845.70 : 717,818,998.95 = 398,596,277.70 : x - Step 2: Convert to fraction form
479,217,845.70/717,818,998.95 = 398,596,277.70/x - Step 3: Cross multiply
479,217,845.70x = 717,818,998.95 × 398,596,277.70 - Step 4: Simplify right side
479,217,845.70x = 286,119,981,043,810,208 - Step 5: Solve for x
x = 286,119,981,043,810,208/479,217,845.70 - Step 6: Final answer
x = 597,056,189.81
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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.