Finding the Fourth Proportional to 414,442,916.20, 621,496,412.70 and 141,673,277.80
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Solution
The fourth proportional to 414,442,916.20, 621,496,412.70 and 141,673,277.80 is: 212,452,500.66
Step by Step Solution
- Step 1: Write the proportion equation
414,442,916.20 : 621,496,412.70 = 141,673,277.80 : x - Step 2: Convert to fraction form
414,442,916.20/621,496,412.70 = 141,673,277.80/x - Step 3: Cross multiply
414,442,916.20x = 621,496,412.70 × 141,673,277.80 - Step 4: Simplify right side
414,442,916.20x = 88,049,433,928,150,560 - Step 5: Solve for x
x = 88,049,433,928,150,560/414,442,916.20 - Step 6: Final answer
x = 212,452,500.66
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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.