Finding the Fourth Proportional to 115,372,415.85, 159,188,480.28 and 68,306,118.71
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Solution
The fourth proportional to 115,372,415.85, 159,188,480.28 and 68,306,118.71 is: 94,247,374.04
Step by Step Solution
- Step 1: Write the proportion equation
115,372,415.85 : 159,188,480.28 = 68,306,118.71 : x - Step 2: Convert to fraction form
115,372,415.85/159,188,480.28 = 68,306,118.71/x - Step 3: Cross multiply
115,372,415.85x = 159,188,480.28 × 68,306,118.71 - Step 4: Simplify right side
115,372,415.85x = 10,873,547,230,474,232 - Step 5: Solve for x
x = 10,873,547,230,474,232/115,372,415.85 - Step 6: Final answer
x = 94,247,374.04
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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.