Finding the Fourth Proportional to 1,259,713,090.80, 1,889,569,636.20 and 1,183,122,601.20
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Solution
The fourth proportional to 1,259,713,090.80, 1,889,569,636.20 and 1,183,122,601.20 is: 1,774,683,901.80
Step by Step Solution
- Step 1: Write the proportion equation
1,259,713,090.80 : 1,889,569,636.20 = 1,183,122,601.20 : x - Step 2: Convert to fraction form
1,259,713,090.80/1,889,569,636.20 = 1,183,122,601.20/x - Step 3: Cross multiply
1,259,713,090.80x = 1,889,569,636.20 × 1,183,122,601.20 - Step 4: Simplify right side
1,259,713,090.80x = 2,235,592,543,129,481,728 - Step 5: Solve for x
x = 2,235,592,543,129,481,728/1,259,713,090.80 - Step 6: Final answer
x = 1,774,683,901.80
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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.