Finding the Fourth Proportional to 18,390,997.84, 25,380,364.35 and 10,242,235.84
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Solution
The fourth proportional to 18,390,997.84, 25,380,364.35 and 10,242,235.84 is: 14,134,723.94
Step by Step Solution
- Step 1: Write the proportion equation
18,390,997.84 : 25,380,364.35 = 10,242,235.84 : x - Step 2: Convert to fraction form
18,390,997.84/25,380,364.35 = 10,242,235.84/x - Step 3: Cross multiply
18,390,997.84x = 25,380,364.35 × 10,242,235.84 - Step 4: Simplify right side
18,390,997.84x = 259,951,677,377,828.31 - Step 5: Solve for x
x = 259,951,677,377,828.31/18,390,997.84 - Step 6: Final answer
x = 14,134,723.94
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1.5x scale
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.