Finding the Fourth Proportional to 189,918,695.42, 262,087,799.58 and 102,998,567.42
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Solution
The fourth proportional to 189,918,695.42, 262,087,799.58 and 102,998,567.42 is: 142,138,022.99
Step by Step Solution
- Step 1: Write the proportion equation
189,918,695.42 : 262,087,799.58 = 102,998,567.42 : x - Step 2: Convert to fraction form
189,918,695.42/262,087,799.58 = 102,998,567.42/x - Step 3: Cross multiply
189,918,695.42x = 262,087,799.58 × 102,998,567.42 - Step 4: Simplify right side
189,918,695.42x = 26,994,667,895,000,080 - Step 5: Solve for x
x = 26,994,667,895,000,080/189,918,695.42 - Step 6: Final answer
x = 142,138,022.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.