Finding the Fourth Proportional to 349,721,107.70, 524,581,661.55 and 339,643,411.70
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Solution
The fourth proportional to 349,721,107.70, 524,581,661.55 and 339,643,411.70 is: 509,465,117.55
Step by Step Solution
- Step 1: Write the proportion equation
349,721,107.70 : 524,581,661.55 = 339,643,411.70 : x - Step 2: Convert to fraction form
349,721,107.70/524,581,661.55 = 339,643,411.70/x - Step 3: Cross multiply
349,721,107.70x = 524,581,661.55 × 339,643,411.70 - Step 4: Simplify right side
349,721,107.70x = 178,170,705,244,096,704 - Step 5: Solve for x
x = 178,170,705,244,096,704/349,721,107.70 - Step 6: Final answer
x = 509,465,117.55
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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.