Finding the Fourth Proportional to 1,177,489,877.40, 1,624,946,927.18 and 648,872,780.00
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Solution
The fourth proportional to 1,177,489,877.40, 1,624,946,927.18 and 648,872,780.00 is: 895,450,440.99
Step by Step Solution
- Step 1: Write the proportion equation
1,177,489,877.40 : 1,624,946,927.18 = 648,872,780.00 : x - Step 2: Convert to fraction form
1,177,489,877.40/1,624,946,927.18 = 648,872,780.00/x - Step 3: Cross multiply
1,177,489,877.40x = 1,624,946,927.18 × 648,872,780.00 - Step 4: Simplify right side
1,177,489,877.40x = 1,054,383,829,980,375,040 - Step 5: Solve for x
x = 1,054,383,829,980,375,040/1,177,489,877.40 - Step 6: Final answer
x = 895,450,440.99
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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.