Finding the Fourth Proportional to 99,665,043.70, 149,497,565.55 and 97,985,427.70
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Solution
The fourth proportional to 99,665,043.70, 149,497,565.55 and 97,985,427.70 is: 146,978,141.55
Step by Step Solution
- Step 1: Write the proportion equation
99,665,043.70 : 149,497,565.55 = 97,985,427.70 : x - Step 2: Convert to fraction form
99,665,043.70/149,497,565.55 = 97,985,427.70/x - Step 3: Cross multiply
99,665,043.70x = 149,497,565.55 × 97,985,427.70 - Step 4: Simplify right side
99,665,043.70x = 14,648,582,900,525,538 - Step 5: Solve for x
x = 14,648,582,900,525,538/99,665,043.70 - Step 6: Final answer
x = 146,978,141.55
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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.