Finding the Fourth Proportional to 91,018,214.08, 125,605,146.72 and 49,765,135.04
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Solution
The fourth proportional to 91,018,214.08, 125,605,146.72 and 49,765,135.04 is: 68,675,892.53
Step by Step Solution
- Step 1: Write the proportion equation
91,018,214.08 : 125,605,146.72 = 49,765,135.04 : x - Step 2: Convert to fraction form
91,018,214.08/125,605,146.72 = 49,765,135.04/x - Step 3: Cross multiply
91,018,214.08x = 125,605,146.72 × 49,765,135.04 - Step 4: Simplify right side
91,018,214.08x = 6,250,757,088,239,813 - Step 5: Solve for x
x = 6,250,757,088,239,813/91,018,214.08 - Step 6: Final answer
x = 68,675,892.53
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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.