Finding the Fourth Proportional to 383,872,987.36, 529,743,118.08 and 207,660,544.48
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Solution
The fourth proportional to 383,872,987.36, 529,743,118.08 and 207,660,544.48 is: 286,570,683.42
Step by Step Solution
- Step 1: Write the proportion equation
383,872,987.36 : 529,743,118.08 = 207,660,544.48 : x - Step 2: Convert to fraction form
383,872,987.36/529,743,118.08 = 207,660,544.48/x - Step 3: Cross multiply
383,872,987.36x = 529,743,118.08 × 207,660,544.48 - Step 4: Simplify right side
383,872,987.36x = 110,006,744,335,025,728 - Step 5: Solve for x
x = 110,006,744,335,025,728/383,872,987.36 - Step 6: Final answer
x = 286,570,683.42
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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.