Finding the Fourth Proportional to 131,580,398.97, 197,483,972.54 and 91,219,226.49
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Solution
The fourth proportional to 131,580,398.97, 197,483,972.54 and 91,219,226.49 is: 136,907,437.28
Step by Step Solution
- Step 1: Write the proportion equation
131,580,398.97 : 197,483,972.54 = 91,219,226.49 : x - Step 2: Convert to fraction form
131,580,398.97/197,483,972.54 = 91,219,226.49/x - Step 3: Cross multiply
131,580,398.97x = 197,483,972.54 × 91,219,226.49 - Step 4: Simplify right side
131,580,398.97x = 18,014,335,218,815,104 - Step 5: Solve for x
x = 18,014,335,218,815,104/131,580,398.97 - Step 6: Final answer
x = 136,907,437.28
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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.