Finding the Fourth Proportional to 518,412,752.54, 777,619,877.20 and 211,704,865.42
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Solution
The fourth proportional to 518,412,752.54, 777,619,877.20 and 211,704,865.42 is: 317,557,603.75
Step by Step Solution
- Step 1: Write the proportion equation
518,412,752.54 : 777,619,877.20 = 211,704,865.42 : x - Step 2: Convert to fraction form
518,412,752.54/777,619,877.20 = 211,704,865.42/x - Step 3: Cross multiply
518,412,752.54x = 777,619,877.20 × 211,704,865.42 - Step 4: Simplify right side
518,412,752.54x = 164,625,911,450,542,912 - Step 5: Solve for x
x = 164,625,911,450,542,912/518,412,752.54 - Step 6: Final answer
x = 317,557,603.75
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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.