Finding the Fourth Proportional to 1,279,562,832.98, 1,920,235,241.08 and 450,583,247.58
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Solution
The fourth proportional to 1,279,562,832.98, 1,920,235,241.08 and 450,583,247.58 is: 676,188,623.76
Step by Step Solution
- Step 1: Write the proportion equation
1,279,562,832.98 : 1,920,235,241.08 = 450,583,247.58 : x - Step 2: Convert to fraction form
1,279,562,832.98/1,920,235,241.08 = 450,583,247.58/x - Step 3: Cross multiply
1,279,562,832.98x = 1,920,235,241.08 × 450,583,247.58 - Step 4: Simplify right side
1,279,562,832.98x = 865,225,831,043,390,592 - Step 5: Solve for x
x = 865,225,831,043,390,592/1,279,562,832.98 - Step 6: Final answer
x = 676,188,623.76
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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.