Finding the Fourth Proportional to 838,982,982.80, 1,258,474,474.20 and 757,353,645.20
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Solution
The fourth proportional to 838,982,982.80, 1,258,474,474.20 and 757,353,645.20 is: 1,136,030,467.80
Step by Step Solution
- Step 1: Write the proportion equation
838,982,982.80 : 1,258,474,474.20 = 757,353,645.20 : x - Step 2: Convert to fraction form
838,982,982.80/1,258,474,474.20 = 757,353,645.20/x - Step 3: Cross multiply
838,982,982.80x = 1,258,474,474.20 × 757,353,645.20 - Step 4: Simplify right side
838,982,982.80x = 953,110,230,426,523,392 - Step 5: Solve for x
x = 953,110,230,426,523,392/838,982,982.80 - Step 6: Final answer
x = 1,136,030,467.80
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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.