Finding the Fourth Proportional to 68,241,468.40, 102,362,202.60 and 19,720,905.10
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Solution
The fourth proportional to 68,241,468.40, 102,362,202.60 and 19,720,905.10 is: 29,581,357.65
Step by Step Solution
- Step 1: Write the proportion equation
68,241,468.40 : 102,362,202.60 = 19,720,905.10 : x - Step 2: Convert to fraction form
68,241,468.40/102,362,202.60 = 19,720,905.10/x - Step 3: Cross multiply
68,241,468.40x = 102,362,202.60 × 19,720,905.10 - Step 4: Simplify right side
68,241,468.40x = 2,018,675,283,301,573.25 - Step 5: Solve for x
x = 2,018,675,283,301,573.25/68,241,468.40 - Step 6: Final answer
x = 29,581,357.65
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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.