Finding the Fourth Proportional to 1,276,241,487.30, 1,914,362,230.95 and 1,092,575,477.70
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Solution
The fourth proportional to 1,276,241,487.30, 1,914,362,230.95 and 1,092,575,477.70 is: 1,638,863,216.55
Step by Step Solution
- Step 1: Write the proportion equation
1,276,241,487.30 : 1,914,362,230.95 = 1,092,575,477.70 : x - Step 2: Convert to fraction form
1,276,241,487.30/1,914,362,230.95 = 1,092,575,477.70/x - Step 3: Cross multiply
1,276,241,487.30x = 1,914,362,230.95 × 1,092,575,477.70 - Step 4: Simplify right side
1,276,241,487.30x = 2,091,585,228,971,034,112 - Step 5: Solve for x
x = 2,091,585,228,971,034,112/1,276,241,487.30 - Step 6: Final answer
x = 1,638,863,216.55
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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.