Finding the Fourth Proportional to 383,969,199.34, 529,877,152.74 and 216,740,660.14
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Solution
The fourth proportional to 383,969,199.34, 529,877,152.74 and 216,740,660.14 is: 299,101,917.75
Step by Step Solution
- Step 1: Write the proportion equation
383,969,199.34 : 529,877,152.74 = 216,740,660.14 : x - Step 2: Convert to fraction form
383,969,199.34/529,877,152.74 = 216,740,660.14/x - Step 3: Cross multiply
383,969,199.34x = 529,877,152.74 × 216,740,660.14 - Step 4: Simplify right side
383,969,199.34x = 114,845,923,877,971,200 - Step 5: Solve for x
x = 114,845,923,877,971,200/383,969,199.34 - Step 6: Final answer
x = 299,101,917.75
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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.