Finding the Fourth Proportional to 99,665,038.20, 149,497,557.30 and 97,985,422.20
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Solution
The fourth proportional to 99,665,038.20, 149,497,557.30 and 97,985,422.20 is: 146,978,133.30
Step by Step Solution
- Step 1: Write the proportion equation
99,665,038.20 : 149,497,557.30 = 97,985,422.20 : x - Step 2: Convert to fraction form
99,665,038.20/149,497,557.30 = 97,985,422.20/x - Step 3: Cross multiply
99,665,038.20x = 149,497,557.30 × 97,985,422.20 - Step 4: Simplify right side
99,665,038.20x = 14,648,581,269,909,194 - Step 5: Solve for x
x = 14,648,581,269,909,194/99,665,038.20 - Step 6: Final answer
x = 146,978,133.30
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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.